Finding the Fourth Proportional to 2,585,156.28, 3,877,735.41 and 2,581,420.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,585,156.28 : 3,877,735.41 = 2,581,420.61 : x
2. Step 2: Convert to fraction form
   2,585,156.28/3,877,735.41 = 2,581,420.61/x
3. Step 3: Cross multiply
   2,585,156.28x = 3,877,735.41 × 2,581,420.61
4. Step 4: Simplify right side
   2,585,156.28x = 10,010,066,088,112.12
5. Step 5: Solve for x
   x = 10,010,066,088,112.12/2,585,156.28
6. Step 6: Final answer
   x = 3,872,131.90