Finding the Fourth Proportional to 143,567.98, 198,134.40 and 83,158.18

Step by Step Solution

1. Step 1: Write the proportion equation
   143,567.98 : 198,134.40 = 83,158.18 : x
2. Step 2: Convert to fraction form
   143,567.98/198,134.40 = 83,158.18/x
3. Step 3: Cross multiply
   143,567.98x = 198,134.40 × 83,158.18
4. Step 4: Simplify right side
   143,567.98x = 16,476,495,915.90
5. Step 5: Solve for x
   x = 16,476,495,915.90/143,567.98
6. Step 6: Final answer
   x = 114,764.42