Finding the Fourth Proportional to 105,500.70, 145,658.88 and 94,150.71

Step by Step Solution

1. Step 1: Write the proportion equation
   105,500.70 : 145,658.88 = 94,150.71 : x
2. Step 2: Convert to fraction form
   105,500.70/145,658.88 = 94,150.71/x
3. Step 3: Cross multiply
   105,500.70x = 145,658.88 × 94,150.71
4. Step 4: Simplify right side
   105,500.70x = 13,713,886,969.80
5. Step 5: Solve for x
   x = 13,713,886,969.80/105,500.70
6. Step 6: Final answer
   x = 129,988.59