Finding the Fourth Proportional to 85,874.16, 118,483.92 and 49,566.72

Step by Step Solution

1. Step 1: Write the proportion equation
   85,874.16 : 118,483.92 = 49,566.72 : x
2. Step 2: Convert to fraction form
   85,874.16/118,483.92 = 49,566.72/x
3. Step 3: Cross multiply
   85,874.16x = 118,483.92 × 49,566.72
4. Step 4: Simplify right side
   85,874.16x = 5,872,859,287.14
5. Step 5: Solve for x
   x = 5,872,859,287.14/85,874.16
6. Step 6: Final answer
   x = 68,389.13