Finding the Fourth Proportional to 160,196.91, 221,062.81 and 88,572.63

Step by Step Solution

1. Step 1: Write the proportion equation
   160,196.91 : 221,062.81 = 88,572.63 : x
2. Step 2: Convert to fraction form
   160,196.91/221,062.81 = 88,572.63/x
3. Step 3: Cross multiply
   160,196.91x = 221,062.81 × 88,572.63
4. Step 4: Simplify right side
   160,196.91x = 19,580,114,476.89
5. Step 5: Solve for x
   x = 19,580,114,476.89/160,196.91
6. Step 6: Final answer
   x = 122,225.29