Finding the Fourth Proportional to 11,981.33, 16,527.72 and 7,504.21

Step by Step Solution

1. Step 1: Write the proportion equation
   11,981.33 : 16,527.72 = 7,504.21 : x
2. Step 2: Convert to fraction form
   11,981.33/16,527.72 = 7,504.21/x
3. Step 3: Cross multiply
   11,981.33x = 16,527.72 × 7,504.21
4. Step 4: Simplify right side
   11,981.33x = 124,027,481.70
5. Step 5: Solve for x
   x = 124,027,481.70/11,981.33
6. Step 6: Final answer
   x = 10,351.73