Finding the Fourth Proportional to 118,638.24, 163,719.92 and 64,922.24

Step by Step Solution

1. Step 1: Write the proportion equation
   118,638.24 : 163,719.92 = 64,922.24 : x
2. Step 2: Convert to fraction form
   118,638.24/163,719.92 = 64,922.24/x
3. Step 3: Cross multiply
   118,638.24x = 163,719.92 × 64,922.24
4. Step 4: Simplify right side
   118,638.24x = 10,629,063,939.02
5. Step 5: Solve for x
   x = 10,629,063,939.02/118,638.24
6. Step 6: Final answer
   x = 89,592.23