Finding the Fourth Proportional to 143,538.52, 198,080.22 and 89,853.14

Step by Step Solution

1. Step 1: Write the proportion equation
   143,538.52 : 198,080.22 = 89,853.14 : x
2. Step 2: Convert to fraction form
   143,538.52/198,080.22 = 89,853.14/x
3. Step 3: Cross multiply
   143,538.52x = 198,080.22 × 89,853.14
4. Step 4: Simplify right side
   143,538.52x = 17,798,128,748.49
5. Step 5: Solve for x
   x = 17,798,128,748.49/143,538.52
6. Step 6: Final answer
   x = 123,995.49