Finding the Fourth Proportional to 123,380.46, 185,147.24 and 56,830.05

Step by Step Solution

1. Step 1: Write the proportion equation
   123,380.46 : 185,147.24 = 56,830.05 : x
2. Step 2: Convert to fraction form
   123,380.46/185,147.24 = 56,830.05/x
3. Step 3: Cross multiply
   123,380.46x = 185,147.24 × 56,830.05
4. Step 4: Simplify right side
   123,380.46x = 10,521,926,622.41
5. Step 5: Solve for x
   x = 10,521,926,622.41/123,380.46
6. Step 6: Final answer
   x = 85,280.33