Finding the Fourth Proportional to 81,452.38, 112,404.28 and 49,621.25

Step by Step Solution

1. Step 1: Write the proportion equation
   81,452.38 : 112,404.28 = 49,621.25 : x
2. Step 2: Convert to fraction form
   81,452.38/112,404.28 = 49,621.25/x
3. Step 3: Cross multiply
   81,452.38x = 112,404.28 × 49,621.25
4. Step 4: Simplify right side
   81,452.38x = 5,577,641,035.91
5. Step 5: Solve for x
   x = 5,577,641,035.91/81,452.38
6. Step 6: Final answer
   x = 68,477.33