Finding the Fourth Proportional to 3,613,139.28, 4,985,772.88 and 2,085,738.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,613,139.28 : 4,985,772.88 = 2,085,738.48 : x
2. Step 2: Convert to fraction form
   3,613,139.28/4,985,772.88 = 2,085,738.48/x
3. Step 3: Cross multiply
   3,613,139.28x = 4,985,772.88 × 2,085,738.48
4. Step 4: Simplify right side
   3,613,139.28x = 10,399,018,348,356.42
5. Step 5: Solve for x
   x = 10,399,018,348,356.42/3,613,139.28
6. Step 6: Final answer
   x = 2,878,111.68