Finding the Fourth Proportional to 42,066.52, 63,086.13 and 13,979.04

Step by Step Solution

1. Step 1: Write the proportion equation
   42,066.52 : 63,086.13 = 13,979.04 : x
2. Step 2: Convert to fraction form
   42,066.52/63,086.13 = 13,979.04/x
3. Step 3: Cross multiply
   42,066.52x = 63,086.13 × 13,979.04
4. Step 4: Simplify right side
   42,066.52x = 881,883,534.72
5. Step 5: Solve for x
   x = 881,883,534.72/42,066.52
6. Step 6: Final answer
   x = 20,964.02