Finding the Fourth Proportional to 83,621.94, 115,379.98 and 49,641.63

Step by Step Solution

1. Step 1: Write the proportion equation
   83,621.94 : 115,379.98 = 49,641.63 : x
2. Step 2: Convert to fraction form
   83,621.94/115,379.98 = 49,641.63/x
3. Step 3: Cross multiply
   83,621.94x = 115,379.98 × 49,641.63
4. Step 4: Simplify right side
   83,621.94x = 5,727,650,276.57
5. Step 5: Solve for x
   x = 5,727,650,276.57/83,621.94
6. Step 6: Final answer
   x = 68,494.59