Finding the Fourth Proportional to 159,679.32, 220,354.20 and 88,061.28

Step by Step Solution

1. Step 1: Write the proportion equation
   159,679.32 : 220,354.20 = 88,061.28 : x
2. Step 2: Convert to fraction form
   159,679.32/220,354.20 = 88,061.28/x
3. Step 3: Cross multiply
   159,679.32x = 220,354.20 × 88,061.28
4. Step 4: Simplify right side
   159,679.32x = 19,404,672,905.38
5. Step 5: Solve for x
   x = 19,404,672,905.38/159,679.32
6. Step 6: Final answer
   x = 121,522.77