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Finding the Fourth Proportional to 73,195.20, 109,792.80 and 17,791.20

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Solution

The fourth proportional to 73,195.20, 109,792.80 and 17,791.20 is: 26,686.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,195.20 : 109,792.80 = 17,791.20 : x
  2. Step 2: Convert to fraction form
    73,195.20/109,792.80 = 17,791.20/x
  3. Step 3: Cross multiply
    73,195.20x = 109,792.80 × 17,791.20
  4. Step 4: Simplify right side
    73,195.20x = 1,953,345,663.36
  5. Step 5: Solve for x
    x = 1,953,345,663.36/73,195.20
  6. Step 6: Final answer
    x = 26,686.80

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