Finding the Fourth Proportional to 114,742.50, 158,359.50 and 64,441.50

Step by Step Solution

1. Step 1: Write the proportion equation
   114,742.50 : 158,359.50 = 64,441.50 : x
2. Step 2: Convert to fraction form
   114,742.50/158,359.50 = 64,441.50/x
3. Step 3: Cross multiply
   114,742.50x = 158,359.50 × 64,441.50
4. Step 4: Simplify right side
   114,742.50x = 10,204,923,719.25
5. Step 5: Solve for x
   x = 10,204,923,719.25/114,742.50
6. Step 6: Final answer
   x = 88,937.61