Finding the Fourth Proportional to 142,943.98, 197,133.61 and 89,233.98

Step by Step Solution

1. Step 1: Write the proportion equation
   142,943.98 : 197,133.61 = 89,233.98 : x
2. Step 2: Convert to fraction form
   142,943.98/197,133.61 = 89,233.98/x
3. Step 3: Cross multiply
   142,943.98x = 197,133.61 × 89,233.98
4. Step 4: Simplify right side
   142,943.98x = 17,591,016,612.07
5. Step 5: Solve for x
   x = 17,591,016,612.07/142,943.98
6. Step 6: Final answer
   x = 123,062.31