Finding the Fourth Proportional to 114,821.50, 158,454.48 and 64,520.50

Step by Step Solution

1. Step 1: Write the proportion equation
   114,821.50 : 158,454.48 = 64,520.50 : x
2. Step 2: Convert to fraction form
   114,821.50/158,454.48 = 64,520.50/x
3. Step 3: Cross multiply
   114,821.50x = 158,454.48 × 64,520.50
4. Step 4: Simplify right side
   114,821.50x = 10,223,562,276.84
5. Step 5: Solve for x
   x = 10,223,562,276.84/114,821.50
6. Step 6: Final answer
   x = 89,038.75