Finding the Fourth Proportional to 118,766.20, 163,897.32 and 65,054.56

Step by Step Solution

1. Step 1: Write the proportion equation
   118,766.20 : 163,897.32 = 65,054.56 : x
2. Step 2: Convert to fraction form
   118,766.20/163,897.32 = 65,054.56/x
3. Step 3: Cross multiply
   118,766.20x = 163,897.32 × 65,054.56
4. Step 4: Simplify right side
   118,766.20x = 10,662,268,037.78
5. Step 5: Solve for x
   x = 10,662,268,037.78/118,766.20
6. Step 6: Final answer
   x = 89,775.27