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Finding the Fourth Proportional to 57,193.77, 85,791.90 and 40,257.57

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Solution

The fourth proportional to 57,193.77, 85,791.90 and 40,257.57 is: 60,387.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,193.77 : 85,791.90 = 40,257.57 : x
  2. Step 2: Convert to fraction form
    57,193.77/85,791.90 = 40,257.57/x
  3. Step 3: Cross multiply
    57,193.77x = 85,791.90 × 40,257.57
  4. Step 4: Simplify right side
    57,193.77x = 3,453,773,419.68
  5. Step 5: Solve for x
    x = 3,453,773,419.68/57,193.77
  6. Step 6: Final answer
    x = 60,387.23

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