Finding the Fourth Proportional to 139,290.30, 208,857 and 44,498.22

Step by Step Solution

1. Step 1: Write the proportion equation
   139,290.30 : 208,857 = 44,498.22 : x
2. Step 2: Convert to fraction form
   139,290.30/208,857 = 44,498.22/x
3. Step 3: Cross multiply
   139,290.30x = 208,857 × 44,498.22
4. Step 4: Simplify right side
   139,290.30x = 9,293,764,734.54
5. Step 5: Solve for x
   x = 9,293,764,734.54/139,290.30
6. Step 6: Final answer
   x = 66,722.27