Finding the Fourth Proportional to 3,478,238.90, 4,800,019.42 and 2,101,391.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,478,238.90 : 4,800,019.42 = 2,101,391.18 : x
2. Step 2: Convert to fraction form
   3,478,238.90/4,800,019.42 = 2,101,391.18/x
3. Step 3: Cross multiply
   3,478,238.90x = 4,800,019.42 × 2,101,391.18
4. Step 4: Simplify right side
   3,478,238.90x = 10,086,718,473,016.72
5. Step 5: Solve for x
   x = 10,086,718,473,016.72/3,478,238.90
6. Step 6: Final answer
   x = 2,899,949.88