Finding the Fourth Proportional to 143,674.77, 198,271.10 and 83,280.41

Step by Step Solution

1. Step 1: Write the proportion equation
   143,674.77 : 198,271.10 = 83,280.41 : x
2. Step 2: Convert to fraction form
   143,674.77/198,271.10 = 83,280.41/x
3. Step 3: Cross multiply
   143,674.77x = 198,271.10 × 83,280.41
4. Step 4: Simplify right side
   143,674.77x = 16,512,098,499.15
5. Step 5: Solve for x
   x = 16,512,098,499.15/143,674.77
6. Step 6: Final answer
   x = 114,926.92