Finding the Fourth Proportional to 81,418.68, 112,357.82 and 49,587.59

Step by Step Solution

1. Step 1: Write the proportion equation
   81,418.68 : 112,357.82 = 49,587.59 : x
2. Step 2: Convert to fraction form
   81,418.68/112,357.82 = 49,587.59/x
3. Step 3: Cross multiply
   81,418.68x = 112,357.82 × 49,587.59
4. Step 4: Simplify right side
   81,418.68x = 5,571,553,916.32
5. Step 5: Solve for x
   x = 5,571,553,916.32/81,418.68
6. Step 6: Final answer
   x = 68,430.90