Finding the Fourth Proportional to 9,410.72, 12,984.54 and 5,872.64

Step by Step Solution

1. Step 1: Write the proportion equation
   9,410.72 : 12,984.54 = 5,872.64 : x
2. Step 2: Convert to fraction form
   9,410.72/12,984.54 = 5,872.64/x
3. Step 3: Cross multiply
   9,410.72x = 12,984.54 × 5,872.64
4. Step 4: Simplify right side
   9,410.72x = 76,253,528.99
5. Step 5: Solve for x
   x = 76,253,528.99/9,410.72
6. Step 6: Final answer
   x = 8,102.84