Finding the Fourth Proportional to 12,830.98, 17,711.46 and 7,530.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,830.98 : 17,711.46 = 7,530.24 : x
2. Step 2: Convert to fraction form
   12,830.98/17,711.46 = 7,530.24/x
3. Step 3: Cross multiply
   12,830.98x = 17,711.46 × 7,530.24
4. Step 4: Simplify right side
   12,830.98x = 133,371,544.55
5. Step 5: Solve for x
   x = 133,371,544.55/12,830.98
6. Step 6: Final answer
   x = 10,394.49