Finding the Fourth Proportional to 10,990,464.56, 15,149,322.56 and 8,663,564.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,990,464.56 : 15,149,322.56 = 8,663,564.96 : x
2. Step 2: Convert to fraction form
   10,990,464.56/15,149,322.56 = 8,663,564.96/x
3. Step 3: Cross multiply
   10,990,464.56x = 15,149,322.56 × 8,663,564.96
4. Step 4: Simplify right side
   10,990,464.56x = 131,247,140,098,553.52
5. Step 5: Solve for x
   x = 131,247,140,098,553.52/10,990,464.56
6. Step 6: Final answer
   x = 11,941,910.13