Finding the Fourth Proportional to 3,131,385.20, 4,321,238.46 and 1,842,308.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,131,385.20 : 4,321,238.46 = 1,842,308.72 : x
2. Step 2: Convert to fraction form
   3,131,385.20/4,321,238.46 = 1,842,308.72/x
3. Step 3: Cross multiply
   3,131,385.20x = 4,321,238.46 × 1,842,308.72
4. Step 4: Simplify right side
   3,131,385.20x = 7,961,055,296,057.37
5. Step 5: Solve for x
   x = 7,961,055,296,057.37/3,131,385.20
6. Step 6: Final answer
   x = 2,542,343.02