Finding the Fourth Proportional to 42,105.96, 63,169.98 and 12,524.04

Step by Step Solution

1. Step 1: Write the proportion equation
   42,105.96 : 63,169.98 = 12,524.04 : x
2. Step 2: Convert to fraction form
   42,105.96/63,169.98 = 12,524.04/x
3. Step 3: Cross multiply
   42,105.96x = 63,169.98 × 12,524.04
4. Step 4: Simplify right side
   42,105.96x = 791,143,356.32
5. Step 5: Solve for x
   x = 791,143,356.32/42,105.96
6. Step 6: Final answer
   x = 18,789.34