Finding the Fourth Proportional to 118,043.91, 162,895.85 and 64,327.78

Step by Step Solution

1. Step 1: Write the proportion equation
   118,043.91 : 162,895.85 = 64,327.78 : x
2. Step 2: Convert to fraction form
   118,043.91/162,895.85 = 64,327.78/x
3. Step 3: Cross multiply
   118,043.91x = 162,895.85 × 64,327.78
4. Step 4: Simplify right side
   118,043.91x = 10,478,728,401.71
5. Step 5: Solve for x
   x = 10,478,728,401.71/118,043.91
6. Step 6: Final answer
   x = 88,769.75