Finding the Fourth Proportional to 83,280.20, 124,877.10 and 30,662.60

Step by Step Solution

1. Step 1: Write the proportion equation
   83,280.20 : 124,877.10 = 30,662.60 : x
2. Step 2: Convert to fraction form
   83,280.20/124,877.10 = 30,662.60/x
3. Step 3: Cross multiply
   83,280.20x = 124,877.10 × 30,662.60
4. Step 4: Simplify right side
   83,280.20x = 3,829,056,566.46
5. Step 5: Solve for x
   x = 3,829,056,566.46/83,280.20
6. Step 6: Final answer
   x = 45,977.99