Finding the Fourth Proportional to 96,686.10, 144,856.35 and 82,862.10

Step by Step Solution

1. Step 1: Write the proportion equation
   96,686.10 : 144,856.35 = 82,862.10 : x
2. Step 2: Convert to fraction form
   96,686.10/144,856.35 = 82,862.10/x
3. Step 3: Cross multiply
   96,686.10x = 144,856.35 × 82,862.10
4. Step 4: Simplify right side
   96,686.10x = 12,003,101,359.34
5. Step 5: Solve for x
   x = 12,003,101,359.34/96,686.10
6. Step 6: Final answer
   x = 124,145.06