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Finding the Fourth Proportional to 72,368.53, 108,719.66 and 69,379.22

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Solution

The fourth proportional to 72,368.53, 108,719.66 and 69,379.22 is: 104,228.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,368.53 : 108,719.66 = 69,379.22 : x
  2. Step 2: Convert to fraction form
    72,368.53/108,719.66 = 69,379.22/x
  3. Step 3: Cross multiply
    72,368.53x = 108,719.66 × 69,379.22
  4. Step 4: Simplify right side
    72,368.53x = 7,542,885,654.71
  5. Step 5: Solve for x
    x = 7,542,885,654.71/72,368.53
  6. Step 6: Final answer
    x = 104,228.81

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