Finding the Fourth Proportional to 108,231.47, 149,406.86 and 82,738.91

Step by Step Solution

1. Step 1: Write the proportion equation
   108,231.47 : 149,406.86 = 82,738.91 : x
2. Step 2: Convert to fraction form
   108,231.47/149,406.86 = 82,738.91/x
3. Step 3: Cross multiply
   108,231.47x = 149,406.86 × 82,738.91
4. Step 4: Simplify right side
   108,231.47x = 12,361,760,702.75
5. Step 5: Solve for x
   x = 12,361,760,702.75/108,231.47
6. Step 6: Final answer
   x = 114,215.95