Finding the Fourth Proportional to 159,760.72, 220,470.52 and 88,140.72

Step by Step Solution

1. Step 1: Write the proportion equation
   159,760.72 : 220,470.52 = 88,140.72 : x
2. Step 2: Convert to fraction form
   159,760.72/220,470.52 = 88,140.72/x
3. Step 3: Cross multiply
   159,760.72x = 220,470.52 × 88,140.72
4. Step 4: Simplify right side
   159,760.72x = 19,432,430,371.57
5. Step 5: Solve for x
   x = 19,432,430,371.57/159,760.72
6. Step 6: Final answer
   x = 121,634.59