Finding the Fourth Proportional to 117,854.24, 162,635.73 and 64,138.10

Step by Step Solution

1. Step 1: Write the proportion equation
   117,854.24 : 162,635.73 = 64,138.10 : x
2. Step 2: Convert to fraction form
   117,854.24/162,635.73 = 64,138.10/x
3. Step 3: Cross multiply
   117,854.24x = 162,635.73 × 64,138.10
4. Step 4: Simplify right side
   117,854.24x = 10,431,146,714.31
5. Step 5: Solve for x
   x = 10,431,146,714.31/117,854.24
6. Step 6: Final answer
   x = 88,508.88