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Finding the Fourth Proportional to 8,822.92, 12,173.94 and 5,637.88

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Solution

The fourth proportional to 8,822.92, 12,173.94 and 5,637.88 is: 7,779.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,822.92 : 12,173.94 = 5,637.88 : x
  2. Step 2: Convert to fraction form
    8,822.92/12,173.94 = 5,637.88/x
  3. Step 3: Cross multiply
    8,822.92x = 12,173.94 × 5,637.88
  4. Step 4: Simplify right side
    8,822.92x = 68,635,212.85
  5. Step 5: Solve for x
    x = 68,635,212.85/8,822.92
  6. Step 6: Final answer
    x = 7,779.19

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