Finding the Fourth Proportional to 117,833.78, 162,609.25 and 64,117.87

Step by Step Solution

1. Step 1: Write the proportion equation
   117,833.78 : 162,609.25 = 64,117.87 : x
2. Step 2: Convert to fraction form
   117,833.78/162,609.25 = 64,117.87/x
3. Step 3: Cross multiply
   117,833.78x = 162,609.25 × 64,117.87
4. Step 4: Simplify right side
   117,833.78x = 10,426,158,752.30
5. Step 5: Solve for x
   x = 10,426,158,752.30/117,833.78
6. Step 6: Final answer
   x = 88,481.92