Finding the Fourth Proportional to 82,961.30, 124,490.55 and 30,376.10

Step by Step Solution

1. Step 1: Write the proportion equation
   82,961.30 : 124,490.55 = 30,376.10 : x
2. Step 2: Convert to fraction form
   82,961.30/124,490.55 = 30,376.10/x
3. Step 3: Cross multiply
   82,961.30x = 124,490.55 × 30,376.10
4. Step 4: Simplify right side
   82,961.30x = 3,781,537,395.86
5. Step 5: Solve for x
   x = 3,781,537,395.86/82,961.30
6. Step 6: Final answer
   x = 45,581.94