Finding the Fourth Proportional to 160,019.82, 220,826.43 and 88,399.50

Step by Step Solution

1. Step 1: Write the proportion equation
   160,019.82 : 220,826.43 = 88,399.50 : x
2. Step 2: Convert to fraction form
   160,019.82/220,826.43 = 88,399.50/x
3. Step 3: Cross multiply
   160,019.82x = 220,826.43 × 88,399.50
4. Step 4: Simplify right side
   160,019.82x = 19,520,945,998.79
5. Step 5: Solve for x
   x = 19,520,945,998.79/160,019.82
6. Step 6: Final answer
   x = 121,990.80