Finding the Fourth Proportional to 118,046.92, 162,898.94 and 64,331.78

Step by Step Solution

1. Step 1: Write the proportion equation
   118,046.92 : 162,898.94 = 64,331.78 : x
2. Step 2: Convert to fraction form
   118,046.92/162,898.94 = 64,331.78/x
3. Step 3: Cross multiply
   118,046.92x = 162,898.94 × 64,331.78
4. Step 4: Simplify right side
   118,046.92x = 10,479,578,770.31
5. Step 5: Solve for x
   x = 10,479,578,770.31/118,046.92
6. Step 6: Final answer
   x = 88,774.69