Finding the Fourth Proportional to 159,697.56, 220,392.72 and 88,077.72

Step by Step Solution

1. Step 1: Write the proportion equation
   159,697.56 : 220,392.72 = 88,077.72 : x
2. Step 2: Convert to fraction form
   159,697.56/220,392.72 = 88,077.72/x
3. Step 3: Cross multiply
   159,697.56x = 220,392.72 × 88,077.72
4. Step 4: Simplify right side
   159,697.56x = 19,411,688,282.20
5. Step 5: Solve for x
   x = 19,411,688,282.20/159,697.56
6. Step 6: Final answer
   x = 121,552.82