Finding the Fourth Proportional to 117,689.43, 162,411.72 and 63,974.37

Step by Step Solution

1. Step 1: Write the proportion equation
   117,689.43 : 162,411.72 = 63,974.37 : x
2. Step 2: Convert to fraction form
   117,689.43/162,411.72 = 63,974.37/x
3. Step 3: Cross multiply
   117,689.43x = 162,411.72 × 63,974.37
4. Step 4: Simplify right side
   117,689.43x = 10,390,187,467.62
5. Step 5: Solve for x
   x = 10,390,187,467.62/117,689.43
6. Step 6: Final answer
   x = 88,284.80