Finding the Fourth Proportional to 159,500.17, 220,142.01 and 91,563.04

Step by Step Solution

1. Step 1: Write the proportion equation
   159,500.17 : 220,142.01 = 91,563.04 : x
2. Step 2: Convert to fraction form
   159,500.17/220,142.01 = 91,563.04/x
3. Step 3: Cross multiply
   159,500.17x = 220,142.01 × 91,563.04
4. Step 4: Simplify right side
   159,500.17x = 20,156,871,667.31
5. Step 5: Solve for x
   x = 20,156,871,667.31/159,500.17
6. Step 6: Final answer
   x = 126,375.24