Finding the Fourth Proportional to 64,061.72, 88,401.46 and 35,769.20

Step by Step Solution

1. Step 1: Write the proportion equation
   64,061.72 : 88,401.46 = 35,769.20 : x
2. Step 2: Convert to fraction form
   64,061.72/88,401.46 = 35,769.20/x
3. Step 3: Cross multiply
   64,061.72x = 88,401.46 × 35,769.20
4. Step 4: Simplify right side
   64,061.72x = 3,162,049,503.03
5. Step 5: Solve for x
   x = 3,162,049,503.03/64,061.72
6. Step 6: Final answer
   x = 49,359.42