Finding the Fourth Proportional to 118,328.72, 163,300.27 and 64,618.73

Step by Step Solution

1. Step 1: Write the proportion equation
   118,328.72 : 163,300.27 = 64,618.73 : x
2. Step 2: Convert to fraction form
   118,328.72/163,300.27 = 64,618.73/x
3. Step 3: Cross multiply
   118,328.72x = 163,300.27 × 64,618.73
4. Step 4: Simplify right side
   118,328.72x = 10,552,255,078.01
5. Step 5: Solve for x
   x = 10,552,255,078.01/118,328.72
6. Step 6: Final answer
   x = 89,177.47