Finding the Fourth Proportional to 2,830,910.40, 4,238,071.20 and 2,499,134.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,830,910.40 : 4,238,071.20 = 2,499,134.40 : x
2. Step 2: Convert to fraction form
   2,830,910.40/4,238,071.20 = 2,499,134.40/x
3. Step 3: Cross multiply
   2,830,910.40x = 4,238,071.20 × 2,499,134.40
4. Step 4: Simplify right side
   2,830,910.40x = 10,591,509,525,569.28
5. Step 5: Solve for x
   x = 10,591,509,525,569.28/2,830,910.40
6. Step 6: Final answer
   x = 3,741,379.28