Finding the Fourth Proportional to 118,112.80, 162,995.76 and 64,397.92

Step by Step Solution

1. Step 1: Write the proportion equation
   118,112.80 : 162,995.76 = 64,397.92 : x
2. Step 2: Convert to fraction form
   118,112.80/162,995.76 = 64,397.92/x
3. Step 3: Cross multiply
   118,112.80x = 162,995.76 × 64,397.92
4. Step 4: Simplify right side
   118,112.80x = 10,496,587,912.82
5. Step 5: Solve for x
   x = 10,496,587,912.82/118,112.80
6. Step 6: Final answer
   x = 88,869.18