Finding the Fourth Proportional to 83,405.94, 115,111.38 and 49,411.80

Step by Step Solution

1. Step 1: Write the proportion equation
   83,405.94 : 115,111.38 = 49,411.80 : x
2. Step 2: Convert to fraction form
   83,405.94/115,111.38 = 49,411.80/x
3. Step 3: Cross multiply
   83,405.94x = 115,111.38 × 49,411.80
4. Step 4: Simplify right side
   83,405.94x = 5,687,860,486.28
5. Step 5: Solve for x
   x = 5,687,860,486.28/83,405.94
6. Step 6: Final answer
   x = 68,194.91