Finding the Fourth Proportional to 12,337.61, 17,021.90 and 7,552.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,337.61 : 17,021.90 = 7,552.56 : x
2. Step 2: Convert to fraction form
   12,337.61/17,021.90 = 7,552.56/x
3. Step 3: Cross multiply
   12,337.61x = 17,021.90 × 7,552.56
4. Step 4: Simplify right side
   12,337.61x = 128,558,883.30
5. Step 5: Solve for x
   x = 128,558,883.30/12,337.61
6. Step 6: Final answer
   x = 10,420.08