Finding the Fourth Proportional to 9,321.94, 12,864.30 and 5,073

Step by Step Solution

1. Step 1: Write the proportion equation
   9,321.94 : 12,864.30 = 5,073 : x
2. Step 2: Convert to fraction form
   9,321.94/12,864.30 = 5,073/x
3. Step 3: Cross multiply
   9,321.94x = 12,864.30 × 5,073
4. Step 4: Simplify right side
   9,321.94x = 65,260,593.90
5. Step 5: Solve for x
   x = 65,260,593.90/9,321.94
6. Step 6: Final answer
   x = 7,000.75