Finding the Fourth Proportional to 143,581.28, 198,153.61 and 83,152.98

Step by Step Solution

1. Step 1: Write the proportion equation
   143,581.28 : 198,153.61 = 83,152.98 : x
2. Step 2: Convert to fraction form
   143,581.28/198,153.61 = 83,152.98/x
3. Step 3: Cross multiply
   143,581.28x = 198,153.61 × 83,152.98
4. Step 4: Simplify right side
   143,581.28x = 16,477,062,961.38
5. Step 5: Solve for x
   x = 16,477,062,961.38/143,581.28
6. Step 6: Final answer
   x = 114,757.74