Finding the Fourth Proportional to 117,719.65, 162,456.38 and 64,008.34

Step by Step Solution

1. Step 1: Write the proportion equation
   117,719.65 : 162,456.38 = 64,008.34 : x
2. Step 2: Convert to fraction form
   117,719.65/162,456.38 = 64,008.34/x
3. Step 3: Cross multiply
   117,719.65x = 162,456.38 × 64,008.34
4. Step 4: Simplify right side
   117,719.65x = 10,398,563,206.21
5. Step 5: Solve for x
   x = 10,398,563,206.21/117,719.65
6. Step 6: Final answer
   x = 88,333.28