Finding the Fourth Proportional to 10,617,784, 15,926,734.32 and 2,639,608

Step by Step Solution

1. Step 1: Write the proportion equation
   10,617,784 : 15,926,734.32 = 2,639,608 : x
2. Step 2: Convert to fraction form
   10,617,784/15,926,734.32 = 2,639,608/x
3. Step 3: Cross multiply
   10,617,784x = 15,926,734.32 × 2,639,608
4. Step 4: Simplify right side
   10,617,784x = 42,040,335,324,946.56
5. Step 5: Solve for x
   x = 42,040,335,324,946.56/10,617,784
6. Step 6: Final answer
   x = 3,959,426.50