Finding the Fourth Proportional to 118,558.42, 163,608.32 and 64,843.27

Step by Step Solution

1. Step 1: Write the proportion equation
   118,558.42 : 163,608.32 = 64,843.27 : x
2. Step 2: Convert to fraction form
   118,558.42/163,608.32 = 64,843.27/x
3. Step 3: Cross multiply
   118,558.42x = 163,608.32 × 64,843.27
4. Step 4: Simplify right side
   118,558.42x = 10,608,898,143.79
5. Step 5: Solve for x
   x = 10,608,898,143.79/118,558.42
6. Step 6: Final answer
   x = 89,482.45