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Finding the Fourth Proportional to 74,498.40, 111,747.60 and 71,042.40

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Solution

The fourth proportional to 74,498.40, 111,747.60 and 71,042.40 is: 106,563.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,498.40 : 111,747.60 = 71,042.40 : x
  2. Step 2: Convert to fraction form
    74,498.40/111,747.60 = 71,042.40/x
  3. Step 3: Cross multiply
    74,498.40x = 111,747.60 × 71,042.40
  4. Step 4: Simplify right side
    74,498.40x = 7,938,817,698.24
  5. Step 5: Solve for x
    x = 7,938,817,698.24/74,498.40
  6. Step 6: Final answer
    x = 106,563.60

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