Finding the Fourth Proportional to 117,694.68, 162,414.72 and 63,978.72

Step by Step Solution

1. Step 1: Write the proportion equation
   117,694.68 : 162,414.72 = 63,978.72 : x
2. Step 2: Convert to fraction form
   117,694.68/162,414.72 = 63,978.72/x
3. Step 3: Cross multiply
   117,694.68x = 162,414.72 × 63,978.72
4. Step 4: Simplify right side
   117,694.68x = 10,391,085,894.76
5. Step 5: Solve for x
   x = 10,391,085,894.76/117,694.68
6. Step 6: Final answer
   x = 88,288.49