Finding the Fourth Proportional to 8,320,990.26, 12,485,443.86 and 5,766,136.86

Step by Step Solution

1. Step 1: Write the proportion equation
   8,320,990.26 : 12,485,443.86 = 5,766,136.86 : x
2. Step 2: Convert to fraction form
   8,320,990.26/12,485,443.86 = 5,766,136.86/x
3. Step 3: Cross multiply
   8,320,990.26x = 12,485,443.86 × 5,766,136.86
4. Step 4: Simplify right side
   8,320,990.26x = 71,992,778,054,606.69
5. Step 5: Solve for x
   x = 71,992,778,054,606.69/8,320,990.26
6. Step 6: Final answer
   x = 8,651,948.36