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Finding the Fourth Proportional to 57,731.97, 86,600.40 and 18,288.21

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Solution

The fourth proportional to 57,731.97, 86,600.40 and 18,288.21 is: 27,433.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,731.97 : 86,600.40 = 18,288.21 : x
  2. Step 2: Convert to fraction form
    57,731.97/86,600.40 = 18,288.21/x
  3. Step 3: Cross multiply
    57,731.97x = 86,600.40 × 18,288.21
  4. Step 4: Simplify right side
    57,731.97x = 1,583,766,301.28
  5. Step 5: Solve for x
    x = 1,583,766,301.28/57,731.97
  6. Step 6: Final answer
    x = 27,433.09

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