Finding the Fourth Proportional to 12,523.80, 17,281.16 and 7,488.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,523.80 : 17,281.16 = 7,488.56 : x
2. Step 2: Convert to fraction form
   12,523.80/17,281.16 = 7,488.56/x
3. Step 3: Cross multiply
   12,523.80x = 17,281.16 × 7,488.56
4. Step 4: Simplify right side
   12,523.80x = 129,411,003.53
5. Step 5: Solve for x
   x = 129,411,003.53/12,523.80
6. Step 6: Final answer
   x = 10,333.21