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Finding the Fourth Proportional to 216,696.17, 324,822.67 and 74,498.78

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Solution

The fourth proportional to 216,696.17, 324,822.67 and 74,498.78 is: 111,671.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,696.17 : 324,822.67 = 74,498.78 : x
  2. Step 2: Convert to fraction form
    216,696.17/324,822.67 = 74,498.78/x
  3. Step 3: Cross multiply
    216,696.17x = 324,822.67 × 74,498.78
  4. Step 4: Simplify right side
    216,696.17x = 24,198,892,631.34
  5. Step 5: Solve for x
    x = 24,198,892,631.34/216,696.17
  6. Step 6: Final answer
    x = 111,671.99

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