Finding the Fourth Proportional to 160,665.33, 240,761.18 and 89,489.98

Step by Step Solution

1. Step 1: Write the proportion equation
   160,665.33 : 240,761.18 = 89,489.98 : x
2. Step 2: Convert to fraction form
   160,665.33/240,761.18 = 89,489.98/x
3. Step 3: Cross multiply
   160,665.33x = 240,761.18 × 89,489.98
4. Step 4: Simplify right side
   160,665.33x = 21,545,713,589.12
5. Step 5: Solve for x
   x = 21,545,713,589.12/160,665.33
6. Step 6: Final answer
   x = 134,103.07