Finding the Fourth Proportional to 85,664.34, 118,229.22 and 49,358.72

Step by Step Solution

1. Step 1: Write the proportion equation
   85,664.34 : 118,229.22 = 49,358.72 : x
2. Step 2: Convert to fraction form
   85,664.34/118,229.22 = 49,358.72/x
3. Step 3: Cross multiply
   85,664.34x = 118,229.22 × 49,358.72
4. Step 4: Simplify right side
   85,664.34x = 5,835,642,965.80
5. Step 5: Solve for x
   x = 5,835,642,965.80/85,664.34
6. Step 6: Final answer
   x = 68,122.20