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Finding the Fourth Proportional to 212,969.96, 319,454.63 and 55,198.56

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Solution

The fourth proportional to 212,969.96, 319,454.63 and 55,198.56 is: 82,797.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,969.96 : 319,454.63 = 55,198.56 : x
  2. Step 2: Convert to fraction form
    212,969.96/319,454.63 = 55,198.56/x
  3. Step 3: Cross multiply
    212,969.96x = 319,454.63 × 55,198.56
  4. Step 4: Simplify right side
    212,969.96x = 17,633,435,285.34
  5. Step 5: Solve for x
    x = 17,633,435,285.34/212,969.96
  6. Step 6: Final answer
    x = 82,797.76

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