Finding the Fourth Proportional to 139,766.46, 209,585.12 and 44,979

Step by Step Solution

1. Step 1: Write the proportion equation
   139,766.46 : 209,585.12 = 44,979 : x
2. Step 2: Convert to fraction form
   139,766.46/209,585.12 = 44,979/x
3. Step 3: Cross multiply
   139,766.46x = 209,585.12 × 44,979
4. Step 4: Simplify right side
   139,766.46x = 9,426,929,112.48
5. Step 5: Solve for x
   x = 9,426,929,112.48/139,766.46
6. Step 6: Final answer
   x = 67,447.72