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Finding the Fourth Proportional to 72,693.60, 109,040.04 and 19,385.46

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Solution

The fourth proportional to 72,693.60, 109,040.04 and 19,385.46 is: 29,078.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,693.60 : 109,040.04 = 19,385.46 : x
  2. Step 2: Convert to fraction form
    72,693.60/109,040.04 = 19,385.46/x
  3. Step 3: Cross multiply
    72,693.60x = 109,040.04 × 19,385.46
  4. Step 4: Simplify right side
    72,693.60x = 2,113,791,333.82
  5. Step 5: Solve for x
    x = 2,113,791,333.82/72,693.60
  6. Step 6: Final answer
    x = 29,078.09

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