Finding the Fourth Proportional to 160,598.72, 221,623.32 and 88,978.48

Step by Step Solution

1. Step 1: Write the proportion equation
   160,598.72 : 221,623.32 = 88,978.48 : x
2. Step 2: Convert to fraction form
   160,598.72/221,623.32 = 88,978.48/x
3. Step 3: Cross multiply
   160,598.72x = 221,623.32 × 88,978.48
4. Step 4: Simplify right side
   160,598.72x = 19,719,706,146.15
5. Step 5: Solve for x
   x = 19,719,706,146.15/160,598.72
6. Step 6: Final answer
   x = 122,788.69