Finding the Fourth Proportional to 12,828.52, 17,699.34 and 7,523.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,828.52 : 17,699.34 = 7,523.56 : x
2. Step 2: Convert to fraction form
   12,828.52/17,699.34 = 7,523.56/x
3. Step 3: Cross multiply
   12,828.52x = 17,699.34 × 7,523.56
4. Step 4: Simplify right side
   12,828.52x = 133,162,046.45
5. Step 5: Solve for x
   x = 133,162,046.45/12,828.52
6. Step 6: Final answer
   x = 10,380.16