Finding the Fourth Proportional to 117,716.90, 162,452.59 and 64,005.59

Step by Step Solution

1. Step 1: Write the proportion equation
   117,716.90 : 162,452.59 = 64,005.59 : x
2. Step 2: Convert to fraction form
   117,716.90/162,452.59 = 64,005.59/x
3. Step 3: Cross multiply
   117,716.90x = 162,452.59 × 64,005.59
4. Step 4: Simplify right side
   117,716.90x = 10,397,874,116.10
5. Step 5: Solve for x
   x = 10,397,874,116.10/117,716.90
6. Step 6: Final answer
   x = 88,329.50