Finding the Fourth Proportional to 117,939.85, 162,752.69 and 64,223.69

Step by Step Solution

1. Step 1: Write the proportion equation
   117,939.85 : 162,752.69 = 64,223.69 : x
2. Step 2: Convert to fraction form
   117,939.85/162,752.69 = 64,223.69/x
3. Step 3: Cross multiply
   117,939.85x = 162,752.69 × 64,223.69
4. Step 4: Simplify right side
   117,939.85x = 10,452,577,656.02
5. Step 5: Solve for x
   x = 10,452,577,656.02/117,939.85
6. Step 6: Final answer
   x = 88,626.35