Finding the Fourth Proportional to 8,317.95, 12,411.47 and 8,036.07

Step by Step Solution

1. Step 1: Write the proportion equation
   8,317.95 : 12,411.47 = 8,036.07 : x
2. Step 2: Convert to fraction form
   8,317.95/12,411.47 = 8,036.07/x
3. Step 3: Cross multiply
   8,317.95x = 12,411.47 × 8,036.07
4. Step 4: Simplify right side
   8,317.95x = 99,739,441.72
5. Step 5: Solve for x
   x = 99,739,441.72/8,317.95
6. Step 6: Final answer
   x = 11,990.87