Finding the Fourth Proportional to 12,645,148.72, 17,450,728.39 and 7,749,425.37

Step by Step Solution

1. Step 1: Write the proportion equation
   12,645,148.72 : 17,450,728.39 = 7,749,425.37 : x
2. Step 2: Convert to fraction form
   12,645,148.72/17,450,728.39 = 7,749,425.37/x
3. Step 3: Cross multiply
   12,645,148.72x = 17,450,728.39 × 7,749,425.37
4. Step 4: Simplify right side
   12,645,148.72x = 135,233,117,287,411.92
5. Step 5: Solve for x
   x = 135,233,117,287,411.92/12,645,148.72
6. Step 6: Final answer
   x = 10,694,466.33