Finding the Fourth Proportional to 96,638.10, 144,957.15 and 82,814.10

Step by Step Solution

1. Step 1: Write the proportion equation
   96,638.10 : 144,957.15 = 82,814.10 : x
2. Step 2: Convert to fraction form
   96,638.10/144,957.15 = 82,814.10/x
3. Step 3: Cross multiply
   96,638.10x = 144,957.15 × 82,814.10
4. Step 4: Simplify right side
   96,638.10x = 12,004,495,915.82
5. Step 5: Solve for x
   x = 12,004,495,915.82/96,638.10
6. Step 6: Final answer
   x = 124,221.15