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Finding the Fourth Proportional to 99,389.44, 137,154.94 and 56,945.23

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Solution

The fourth proportional to 99,389.44, 137,154.94 and 56,945.23 is: 78,582.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,389.44 : 137,154.94 = 56,945.23 : x
  2. Step 2: Convert to fraction form
    99,389.44/137,154.94 = 56,945.23/x
  3. Step 3: Cross multiply
    99,389.44x = 137,154.94 × 56,945.23
  4. Step 4: Simplify right side
    99,389.44x = 7,810,319,603.94
  5. Step 5: Solve for x
    x = 7,810,319,603.94/99,389.44
  6. Step 6: Final answer
    x = 78,582.99

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