Finding the Fourth Proportional to 8,389,162.71, 12,522,500.10 and 7,198,734.87

Step by Step Solution

1. Step 1: Write the proportion equation
   8,389,162.71 : 12,522,500.10 = 7,198,734.87 : x
2. Step 2: Convert to fraction form
   8,389,162.71/12,522,500.10 = 7,198,734.87/x
3. Step 3: Cross multiply
   8,389,162.71x = 12,522,500.10 × 7,198,734.87
4. Step 4: Simplify right side
   8,389,162.71x = 90,146,158,129,448.48
5. Step 5: Solve for x
   x = 90,146,158,129,448.48/8,389,162.71
6. Step 6: Final answer
   x = 10,745,548.90