Finding the Fourth Proportional to 160,665.92, 221,719 and 89,050.58

Step by Step Solution

1. Step 1: Write the proportion equation
   160,665.92 : 221,719 = 89,050.58 : x
2. Step 2: Convert to fraction form
   160,665.92/221,719 = 89,050.58/x
3. Step 3: Cross multiply
   160,665.92x = 221,719 × 89,050.58
4. Step 4: Simplify right side
   160,665.92x = 19,744,205,547.02
5. Step 5: Solve for x
   x = 19,744,205,547.02/160,665.92
6. Step 6: Final answer
   x = 122,889.82