Finding the Fourth Proportional to 2,830,915.40, 4,238,078.70 and 2,499,139.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,830,915.40 : 4,238,078.70 = 2,499,139.40 : x
2. Step 2: Convert to fraction form
   2,830,915.40/4,238,078.70 = 2,499,139.40/x
3. Step 3: Cross multiply
   2,830,915.40x = 4,238,078.70 × 2,499,139.40
4. Step 4: Simplify right side
   2,830,915.40x = 10,591,549,459,470.78
5. Step 5: Solve for x
   x = 10,591,549,459,470.78/2,830,915.40
6. Step 6: Final answer
   x = 3,741,386.78