Finding the Fourth Proportional to 118,441.50, 163,449.27 and 65,449.50

Step by Step Solution

1. Step 1: Write the proportion equation
   118,441.50 : 163,449.27 = 65,449.50 : x
2. Step 2: Convert to fraction form
   118,441.50/163,449.27 = 65,449.50/x
3. Step 3: Cross multiply
   118,441.50x = 163,449.27 × 65,449.50
4. Step 4: Simplify right side
   118,441.50x = 10,697,672,996.87
5. Step 5: Solve for x
   x = 10,697,672,996.87/118,441.50
6. Step 6: Final answer
   x = 90,320.31