Finding the Fourth Proportional to 83,280.70, 124,877.85 and 30,663.10

Step by Step Solution

1. Step 1: Write the proportion equation
   83,280.70 : 124,877.85 = 30,663.10 : x
2. Step 2: Convert to fraction form
   83,280.70/124,877.85 = 30,663.10/x
3. Step 3: Cross multiply
   83,280.70x = 124,877.85 × 30,663.10
4. Step 4: Simplify right side
   83,280.70x = 3,829,142,002.34
5. Step 5: Solve for x
   x = 3,829,142,002.34/83,280.70
6. Step 6: Final answer
   x = 45,978.74