Finding the Fourth Proportional to 118,358.22, 163,327.98 and 64,632.78

Step by Step Solution

1. Step 1: Write the proportion equation
   118,358.22 : 163,327.98 = 64,632.78 : x
2. Step 2: Convert to fraction form
   118,358.22/163,327.98 = 64,632.78/x
3. Step 3: Cross multiply
   118,358.22x = 163,327.98 × 64,632.78
4. Step 4: Simplify right side
   118,358.22x = 10,556,341,399.18
5. Step 5: Solve for x
   x = 10,556,341,399.18/118,358.22
6. Step 6: Final answer
   x = 89,189.76