Finding the Fourth Proportional to 117,694.86, 162,419.67 and 63,980.34

Step by Step Solution

1. Step 1: Write the proportion equation
   117,694.86 : 162,419.67 = 63,980.34 : x
2. Step 2: Convert to fraction form
   117,694.86/162,419.67 = 63,980.34/x
3. Step 3: Cross multiply
   117,694.86x = 162,419.67 × 63,980.34
4. Step 4: Simplify right side
   117,694.86x = 10,391,665,709.29
5. Step 5: Solve for x
   x = 10,391,665,709.29/117,694.86
6. Step 6: Final answer
   x = 88,293.28