Finding the Fourth Proportional to 82,440.80, 123,607.20 and 32,490.80

Step by Step Solution

1. Step 1: Write the proportion equation
   82,440.80 : 123,607.20 = 32,490.80 : x
2. Step 2: Convert to fraction form
   82,440.80/123,607.20 = 32,490.80/x
3. Step 3: Cross multiply
   82,440.80x = 123,607.20 × 32,490.80
4. Step 4: Simplify right side
   82,440.80x = 4,016,096,813.76
5. Step 5: Solve for x
   x = 4,016,096,813.76/82,440.80
6. Step 6: Final answer
   x = 48,714.92