Finding the Fourth Proportional to 118,774.78, 163,909.23 and 65,061.73

Step by Step Solution

1. Step 1: Write the proportion equation
   118,774.78 : 163,909.23 = 65,061.73 : x
2. Step 2: Convert to fraction form
   118,774.78/163,909.23 = 65,061.73/x
3. Step 3: Cross multiply
   118,774.78x = 163,909.23 × 65,061.73
4. Step 4: Simplify right side
   118,774.78x = 10,664,216,921.91
5. Step 5: Solve for x
   x = 10,664,216,921.91/118,774.78
6. Step 6: Final answer
   x = 89,785.20