Finding the Fourth Proportional to 35,545.55, 49,055.76 and 20,443.10

Step by Step Solution

1. Step 1: Write the proportion equation
   35,545.55 : 49,055.76 = 20,443.10 : x
2. Step 2: Convert to fraction form
   35,545.55/49,055.76 = 20,443.10/x
3. Step 3: Cross multiply
   35,545.55x = 49,055.76 × 20,443.10
4. Step 4: Simplify right side
   35,545.55x = 1,002,851,807.26
5. Step 5: Solve for x
   x = 1,002,851,807.26/35,545.55
6. Step 6: Final answer
   x = 28,213.15