Finding the Fourth Proportional to 8,321,805.70, 12,483,680.55 and 2,642,604.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,321,805.70 : 12,483,680.55 = 2,642,604.10 : x
2. Step 2: Convert to fraction form
   8,321,805.70/12,483,680.55 = 2,642,604.10/x
3. Step 3: Cross multiply
   8,321,805.70x = 12,483,680.55 × 2,642,604.10
4. Step 4: Simplify right side
   8,321,805.70x = 32,989,425,404,520.26
5. Step 5: Solve for x
   x = 32,989,425,404,520.26/8,321,805.70
6. Step 6: Final answer
   x = 3,964,214.81