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Finding the Fourth Proportional to 7,772.16, 10,724.88 and 4,627.84

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Solution

The fourth proportional to 7,772.16, 10,724.88 and 4,627.84 is: 6,386.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,772.16 : 10,724.88 = 4,627.84 : x
  2. Step 2: Convert to fraction form
    7,772.16/10,724.88 = 4,627.84/x
  3. Step 3: Cross multiply
    7,772.16x = 10,724.88 × 4,627.84
  4. Step 4: Simplify right side
    7,772.16x = 49,633,028.66
  5. Step 5: Solve for x
    x = 49,633,028.66/7,772.16
  6. Step 6: Final answer
    x = 6,386.00

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