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Finding the Fourth Proportional to 79,169.04, 109,253.46 and 42,870.90

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Solution

The fourth proportional to 79,169.04, 109,253.46 and 42,870.90 is: 59,161.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,169.04 : 109,253.46 = 42,870.90 : x
  2. Step 2: Convert to fraction form
    79,169.04/109,253.46 = 42,870.90/x
  3. Step 3: Cross multiply
    79,169.04x = 109,253.46 × 42,870.90
  4. Step 4: Simplify right side
    79,169.04x = 4,683,794,158.31
  5. Step 5: Solve for x
    x = 4,683,794,158.31/79,169.04
  6. Step 6: Final answer
    x = 59,161.94

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