Finding the Fourth Proportional to 10,617,912, 15,926,926.32 and 2,639,736

Step by Step Solution

1. Step 1: Write the proportion equation
   10,617,912 : 15,926,926.32 = 2,639,736 : x
2. Step 2: Convert to fraction form
   10,617,912/15,926,926.32 = 2,639,736/x
3. Step 3: Cross multiply
   10,617,912x = 15,926,926.32 × 2,639,736
4. Step 4: Simplify right side
   10,617,912x = 42,042,880,776,251.52
5. Step 5: Solve for x
   x = 42,042,880,776,251.52/10,617,912
6. Step 6: Final answer
   x = 3,959,618.50