Finding the Fourth Proportional to 40,104.08, 60,118.29 and 13,790.42

Step by Step Solution

1. Step 1: Write the proportion equation
   40,104.08 : 60,118.29 = 13,790.42 : x
2. Step 2: Convert to fraction form
   40,104.08/60,118.29 = 13,790.42/x
3. Step 3: Cross multiply
   40,104.08x = 60,118.29 × 13,790.42
4. Step 4: Simplify right side
   40,104.08x = 829,056,468.78
5. Step 5: Solve for x
   x = 829,056,468.78/40,104.08
6. Step 6: Final answer
   x = 20,672.62