Finding the Fourth Proportional to 80,061.50, 120,081.92 and 35,678.16

Step by Step Solution

1. Step 1: Write the proportion equation
   80,061.50 : 120,081.92 = 35,678.16 : x
2. Step 2: Convert to fraction form
   80,061.50/120,081.92 = 35,678.16/x
3. Step 3: Cross multiply
   80,061.50x = 120,081.92 × 35,678.16
4. Step 4: Simplify right side
   80,061.50x = 4,284,301,776.48
5. Step 5: Solve for x
   x = 4,284,301,776.48/80,061.50
6. Step 6: Final answer
   x = 53,512.64