Finding the Fourth Proportional to 81,412.92, 112,303.98 and 49,588.92

Step by Step Solution

1. Step 1: Write the proportion equation
   81,412.92 : 112,303.98 = 49,588.92 : x
2. Step 2: Convert to fraction form
   81,412.92/112,303.98 = 49,588.92/x
3. Step 3: Cross multiply
   81,412.92x = 112,303.98 × 49,588.92
4. Step 4: Simplify right side
   81,412.92x = 5,569,033,079.90
5. Step 5: Solve for x
   x = 5,569,033,079.90/81,412.92
6. Step 6: Final answer
   x = 68,404.78