Finding the Fourth Proportional to 3,143,128.03, 4,735,694.78 and 2,839,874.43

Step by Step Solution

1. Step 1: Write the proportion equation
   3,143,128.03 : 4,735,694.78 = 2,839,874.43 : x
2. Step 2: Convert to fraction form
   3,143,128.03/4,735,694.78 = 2,839,874.43/x
3. Step 3: Cross multiply
   3,143,128.03x = 4,735,694.78 × 2,839,874.43
4. Step 4: Simplify right side
   3,143,128.03x = 13,448,778,476,128.63
5. Step 5: Solve for x
   x = 13,448,778,476,128.63/3,143,128.03
6. Step 6: Final answer
   x = 4,278,787.99