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Finding the Fourth Proportional to 19,868.76, 29,806.74 and 8,175.60

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Solution

The fourth proportional to 19,868.76, 29,806.74 and 8,175.60 is: 12,264.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,868.76 : 29,806.74 = 8,175.60 : x
  2. Step 2: Convert to fraction form
    19,868.76/29,806.74 = 8,175.60/x
  3. Step 3: Cross multiply
    19,868.76x = 29,806.74 × 8,175.60
  4. Step 4: Simplify right side
    19,868.76x = 243,687,983.54
  5. Step 5: Solve for x
    x = 243,687,983.54/19,868.76
  6. Step 6: Final answer
    x = 12,264.88

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