Finding the Fourth Proportional to 114,715.91, 158,313.42 and 63,728.78

Step by Step Solution

1. Step 1: Write the proportion equation
   114,715.91 : 158,313.42 = 63,728.78 : x
2. Step 2: Convert to fraction form
   114,715.91/158,313.42 = 63,728.78/x
3. Step 3: Cross multiply
   114,715.91x = 158,313.42 × 63,728.78
4. Step 4: Simplify right side
   114,715.91x = 10,089,120,322.66
5. Step 5: Solve for x
   x = 10,089,120,322.66/114,715.91
6. Step 6: Final answer
   x = 87,948.74