Finding the Fourth Proportional to 3,131,843.99, 4,321,872.72 and 1,825,012.80

Step by Step Solution

1. Step 1: Write the proportion equation
   3,131,843.99 : 4,321,872.72 = 1,825,012.80 : x
2. Step 2: Convert to fraction form
   3,131,843.99/4,321,872.72 = 1,825,012.80/x
3. Step 3: Cross multiply
   3,131,843.99x = 4,321,872.72 × 1,825,012.80
4. Step 4: Simplify right side
   3,131,843.99x = 7,887,473,033,970.82
5. Step 5: Solve for x
   x = 7,887,473,033,970.82/3,131,843.99
6. Step 6: Final answer
   x = 2,518,475.72