Finding the Fourth Proportional to 72,517.83, 108,781.98 and 30,355.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,517.83 : 108,781.98 = 30,355.50 : x
2. Step 2: Convert to fraction form
   72,517.83/108,781.98 = 30,355.50/x
3. Step 3: Cross multiply
   72,517.83x = 108,781.98 × 30,355.50
4. Step 4: Simplify right side
   72,517.83x = 3,302,130,849.98
5. Step 5: Solve for x
   x = 3,302,130,849.98/72,517.83
6. Step 6: Final answer
   x = 45,535.44