Finding the Fourth Proportional to 118,771.25, 163,908.31 and 65,059.28

Step by Step Solution

1. Step 1: Write the proportion equation
   118,771.25 : 163,908.31 = 65,059.28 : x
2. Step 2: Convert to fraction form
   118,771.25/163,908.31 = 65,059.28/x
3. Step 3: Cross multiply
   118,771.25x = 163,908.31 × 65,059.28
4. Step 4: Simplify right side
   118,771.25x = 10,663,757,311.05
5. Step 5: Solve for x
   x = 10,663,757,311.05/118,771.25
6. Step 6: Final answer
   x = 89,784.00