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Finding the Fourth Proportional to 105,695.56, 158,569.74 and 74,591.56

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Solution

The fourth proportional to 105,695.56, 158,569.74 and 74,591.56 is: 111,905.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,695.56 : 158,569.74 = 74,591.56 : x
  2. Step 2: Convert to fraction form
    105,695.56/158,569.74 = 74,591.56/x
  3. Step 3: Cross multiply
    105,695.56x = 158,569.74 × 74,591.56
  4. Step 4: Simplify right side
    105,695.56x = 11,827,964,275.39
  5. Step 5: Solve for x
    x = 11,827,964,275.39/105,695.56
  6. Step 6: Final answer
    x = 111,905.97

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