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Finding the Fourth Proportional to 212,051.71, 318,069.36 and 71,810.34

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Solution

The fourth proportional to 212,051.71, 318,069.36 and 71,810.34 is: 107,712.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,051.71 : 318,069.36 = 71,810.34 : x
  2. Step 2: Convert to fraction form
    212,051.71/318,069.36 = 71,810.34/x
  3. Step 3: Cross multiply
    212,051.71x = 318,069.36 × 71,810.34
  4. Step 4: Simplify right side
    212,051.71x = 22,840,668,885.18
  5. Step 5: Solve for x
    x = 22,840,668,885.18/212,051.71
  6. Step 6: Final answer
    x = 107,712.73

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