Finding the Fourth Proportional to 118,468.38, 163,490.79 and 64,757.04

Step by Step Solution

1. Step 1: Write the proportion equation
   118,468.38 : 163,490.79 = 64,757.04 : x
2. Step 2: Convert to fraction form
   118,468.38/163,490.79 = 64,757.04/x
3. Step 3: Cross multiply
   118,468.38x = 163,490.79 × 64,757.04
4. Step 4: Simplify right side
   118,468.38x = 10,587,179,627.66
5. Step 5: Solve for x
   x = 10,587,179,627.66/118,468.38
6. Step 6: Final answer
   x = 89,367.13