Finding the Fourth Proportional to 117,703.40, 162,433.89 and 63,992.12

Step by Step Solution

1. Step 1: Write the proportion equation
   117,703.40 : 162,433.89 = 63,992.12 : x
2. Step 2: Convert to fraction form
   117,703.40/162,433.89 = 63,992.12/x
3. Step 3: Cross multiply
   117,703.40x = 162,433.89 × 63,992.12
4. Step 4: Simplify right side
   117,703.40x = 10,394,488,168.78
5. Step 5: Solve for x
   x = 10,394,488,168.78/117,703.40
6. Step 6: Final answer
   x = 88,310.86