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Finding the Fourth Proportional to 53,084.04, 79,655.40 and 21,912

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Solution

The fourth proportional to 53,084.04, 79,655.40 and 21,912 is: 32,880.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,084.04 : 79,655.40 = 21,912 : x
  2. Step 2: Convert to fraction form
    53,084.04/79,655.40 = 21,912/x
  3. Step 3: Cross multiply
    53,084.04x = 79,655.40 × 21,912
  4. Step 4: Simplify right side
    53,084.04x = 1,745,409,124.80
  5. Step 5: Solve for x
    x = 1,745,409,124.80/53,084.04
  6. Step 6: Final answer
    x = 32,880.11

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