Finding the Fourth Proportional to 3,131,470.34, 4,321,535.42 and 2,987,981.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,131,470.34 : 4,321,535.42 = 2,987,981.27 : x
2. Step 2: Convert to fraction form
   3,131,470.34/4,321,535.42 = 2,987,981.27/x
3. Step 3: Cross multiply
   3,131,470.34x = 4,321,535.42 × 2,987,981.27
4. Step 4: Simplify right side
   3,131,470.34x = 12,912,666,856,054
5. Step 5: Solve for x
   x = 12,912,666,856,054/3,131,470.34
6. Step 6: Final answer
   x = 4,123,515.63