Finding the Fourth Proportional to 159,499.56, 220,114.38 and 91,529

Step by Step Solution

1. Step 1: Write the proportion equation
   159,499.56 : 220,114.38 = 91,529 : x
2. Step 2: Convert to fraction form
   159,499.56/220,114.38 = 91,529/x
3. Step 3: Cross multiply
   159,499.56x = 220,114.38 × 91,529
4. Step 4: Simplify right side
   159,499.56x = 20,146,849,087.02
5. Step 5: Solve for x
   x = 20,146,849,087.02/159,499.56
6. Step 6: Final answer
   x = 126,312.88