Finding the Fourth Proportional to 118,488.50, 163,514.21 and 64,773.53

Step by Step Solution

1. Step 1: Write the proportion equation
   118,488.50 : 163,514.21 = 64,773.53 : x
2. Step 2: Convert to fraction form
   118,488.50/163,514.21 = 64,773.53/x
3. Step 3: Cross multiply
   118,488.50x = 163,514.21 × 64,773.53
4. Step 4: Simplify right side
   118,488.50x = 10,591,391,445.42
5. Step 5: Solve for x
   x = 10,591,391,445.42/118,488.50
6. Step 6: Final answer
   x = 89,387.51