Finding the Fourth Proportional to 2,780,921.72, 3,835,689.40 and 2,552,216.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,780,921.72 : 3,835,689.40 = 2,552,216.24 : x
2. Step 2: Convert to fraction form
   2,780,921.72/3,835,689.40 = 2,552,216.24/x
3. Step 3: Cross multiply
   2,780,921.72x = 3,835,689.40 × 2,552,216.24
4. Step 4: Simplify right side
   2,780,921.72x = 9,789,508,778,275.86
5. Step 5: Solve for x
   x = 9,789,508,778,275.86/2,780,921.72
6. Step 6: Final answer
   x = 3,520,238.89