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Finding the Fourth Proportional to 113,788.26, 170,629.56 and 66,417.03

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Solution

The fourth proportional to 113,788.26, 170,629.56 and 66,417.03 is: 99,594.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,788.26 : 170,629.56 = 66,417.03 : x
  2. Step 2: Convert to fraction form
    113,788.26/170,629.56 = 66,417.03/x
  3. Step 3: Cross multiply
    113,788.26x = 170,629.56 × 66,417.03
  4. Step 4: Simplify right side
    113,788.26x = 11,332,708,605.41
  5. Step 5: Solve for x
    x = 11,332,708,605.41/113,788.26
  6. Step 6: Final answer
    x = 99,594.71

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