Finding the Fourth Proportional to 9,317.88, 12,864.15 and 5,783.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,317.88 : 12,864.15 = 5,783.04 : x
2. Step 2: Convert to fraction form
   9,317.88/12,864.15 = 5,783.04/x
3. Step 3: Cross multiply
   9,317.88x = 12,864.15 × 5,783.04
4. Step 4: Simplify right side
   9,317.88x = 74,393,894.02
5. Step 5: Solve for x
   x = 74,393,894.02/9,317.88
6. Step 6: Final answer
   x = 7,983.99