Finding the Fourth Proportional to 8,300,969.40, 12,425,916 and 5,416,124.43

Step by Step Solution

1. Step 1: Write the proportion equation
   8,300,969.40 : 12,425,916 = 5,416,124.43 : x
2. Step 2: Convert to fraction form
   8,300,969.40/12,425,916 = 5,416,124.43/x
3. Step 3: Cross multiply
   8,300,969.40x = 12,425,916 × 5,416,124.43
4. Step 4: Simplify right side
   8,300,969.40x = 67,300,307,212,727.88
5. Step 5: Solve for x
   x = 67,300,307,212,727.88/8,300,969.40
6. Step 6: Final answer
   x = 8,107,523.83