Finding the Fourth Proportional to 160,162.56, 221,007.42 and 88,531.02

Step by Step Solution

1. Step 1: Write the proportion equation
   160,162.56 : 221,007.42 = 88,531.02 : x
2. Step 2: Convert to fraction form
   160,162.56/221,007.42 = 88,531.02/x
3. Step 3: Cross multiply
   160,162.56x = 221,007.42 × 88,531.02
4. Step 4: Simplify right side
   160,162.56x = 19,566,012,320.17
5. Step 5: Solve for x
   x = 19,566,012,320.17/160,162.56
6. Step 6: Final answer
   x = 122,163.46