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Finding the Fourth Proportional to 7,718.22, 11,550.99 and 4,905.63

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Solution

The fourth proportional to 7,718.22, 11,550.99 and 4,905.63 is: 7,341.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.22 : 11,550.99 = 4,905.63 : x
  2. Step 2: Convert to fraction form
    7,718.22/11,550.99 = 4,905.63/x
  3. Step 3: Cross multiply
    7,718.22x = 11,550.99 × 4,905.63
  4. Step 4: Simplify right side
    7,718.22x = 56,664,883.07
  5. Step 5: Solve for x
    x = 56,664,883.07/7,718.22
  6. Step 6: Final answer
    x = 7,341.70

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