Finding the Fourth Proportional to 143,697.45, 198,287.58 and 88,498.04

Step by Step Solution

1. Step 1: Write the proportion equation
   143,697.45 : 198,287.58 = 88,498.04 : x
2. Step 2: Convert to fraction form
   143,697.45/198,287.58 = 88,498.04/x
3. Step 3: Cross multiply
   143,697.45x = 198,287.58 × 88,498.04
4. Step 4: Simplify right side
   143,697.45x = 17,548,061,194.91
5. Step 5: Solve for x
   x = 17,548,061,194.91/143,697.45
6. Step 6: Final answer
   x = 122,118.11