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Finding the Fourth Proportional to 8,865.75, 12,235.95 and 5,721.33

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Solution

The fourth proportional to 8,865.75, 12,235.95 and 5,721.33 is: 7,896.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,865.75 : 12,235.95 = 5,721.33 : x
  2. Step 2: Convert to fraction form
    8,865.75/12,235.95 = 5,721.33/x
  3. Step 3: Cross multiply
    8,865.75x = 12,235.95 × 5,721.33
  4. Step 4: Simplify right side
    8,865.75x = 70,005,907.81
  5. Step 5: Solve for x
    x = 70,005,907.81/8,865.75
  6. Step 6: Final answer
    x = 7,896.22

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