Finding the Fourth Proportional to 105,500.63, 145,658.76 and 94,150.62

Step by Step Solution

1. Step 1: Write the proportion equation
   105,500.63 : 145,658.76 = 94,150.62 : x
2. Step 2: Convert to fraction form
   105,500.63/145,658.76 = 94,150.62/x
3. Step 3: Cross multiply
   105,500.63x = 145,658.76 × 94,150.62
4. Step 4: Simplify right side
   105,500.63x = 13,713,862,562.43
5. Step 5: Solve for x
   x = 13,713,862,562.43/105,500.63
6. Step 6: Final answer
   x = 129,988.45