Finding the Fourth Proportional to 7,725.72, 10,658.70 and 5,074.56

Step by Step Solution

1. Step 1: Write the proportion equation
   7,725.72 : 10,658.70 = 5,074.56 : x
2. Step 2: Convert to fraction form
   7,725.72/10,658.70 = 5,074.56/x
3. Step 3: Cross multiply
   7,725.72x = 10,658.70 × 5,074.56
4. Step 4: Simplify right side
   7,725.72x = 54,088,212.67
5. Step 5: Solve for x
   x = 54,088,212.67/7,725.72
6. Step 6: Final answer
   x = 7,001.06