Finding the Fourth Proportional to 12,005.44, 16,566.72 and 7,529

Step by Step Solution

1. Step 1: Write the proportion equation
   12,005.44 : 16,566.72 = 7,529 : x
2. Step 2: Convert to fraction form
   12,005.44/16,566.72 = 7,529/x
3. Step 3: Cross multiply
   12,005.44x = 16,566.72 × 7,529
4. Step 4: Simplify right side
   12,005.44x = 124,730,834.88
5. Step 5: Solve for x
   x = 124,730,834.88/12,005.44
6. Step 6: Final answer
   x = 10,389.53