Finding the Fourth Proportional to 118,695.27, 163,799.22 and 64,979.85

Step by Step Solution

1. Step 1: Write the proportion equation
   118,695.27 : 163,799.22 = 64,979.85 : x
2. Step 2: Convert to fraction form
   118,695.27/163,799.22 = 64,979.85/x
3. Step 3: Cross multiply
   118,695.27x = 163,799.22 × 64,979.85
4. Step 4: Simplify right side
   118,695.27x = 10,643,648,745.72
5. Step 5: Solve for x
   x = 10,643,648,745.72/118,695.27
6. Step 6: Final answer
   x = 89,672.05