Finding the Fourth Proportional to 12,005.38, 16,562.80 and 7,521.33

Step by Step Solution

1. Step 1: Write the proportion equation
   12,005.38 : 16,562.80 = 7,521.33 : x
2. Step 2: Convert to fraction form
   12,005.38/16,562.80 = 7,521.33/x
3. Step 3: Cross multiply
   12,005.38x = 16,562.80 × 7,521.33
4. Step 4: Simplify right side
   12,005.38x = 124,574,284.52
5. Step 5: Solve for x
   x = 124,574,284.52/12,005.38
6. Step 6: Final answer
   x = 10,376.54