Finding the Fourth Proportional to 42,066.53, 63,086.15 and 13,979.04

Step by Step Solution

1. Step 1: Write the proportion equation
   42,066.53 : 63,086.15 = 13,979.04 : x
2. Step 2: Convert to fraction form
   42,066.53/63,086.15 = 13,979.04/x
3. Step 3: Cross multiply
   42,066.53x = 63,086.15 × 13,979.04
4. Step 4: Simplify right side
   42,066.53x = 881,883,849.24
5. Step 5: Solve for x
   x = 881,883,849.24/42,066.53
6. Step 6: Final answer
   x = 20,964.03