Finding the Fourth Proportional to 117,719.40, 162,456.04 and 64,008.09

Step by Step Solution

1. Step 1: Write the proportion equation
   117,719.40 : 162,456.04 = 64,008.09 : x
2. Step 2: Convert to fraction form
   117,719.40/162,456.04 = 64,008.09/x
3. Step 3: Cross multiply
   117,719.40x = 162,456.04 × 64,008.09
4. Step 4: Simplify right side
   117,719.40x = 10,398,500,829.36
5. Step 5: Solve for x
   x = 10,398,500,829.36/117,719.40
6. Step 6: Final answer
   x = 88,332.94