Finding the Fourth Proportional to 81,217.40, 112,114.56 and 49,396.52

Step by Step Solution

1. Step 1: Write the proportion equation
   81,217.40 : 112,114.56 = 49,396.52 : x
2. Step 2: Convert to fraction form
   81,217.40/112,114.56 = 49,396.52/x
3. Step 3: Cross multiply
   81,217.40x = 112,114.56 × 49,396.52
4. Step 4: Simplify right side
   81,217.40x = 5,538,069,105.33
5. Step 5: Solve for x
   x = 5,538,069,105.33/81,217.40
6. Step 6: Final answer
   x = 68,188.21