Finding the Fourth Proportional to 21,571.04, 32,346.16 and 7,530.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,571.04 : 32,346.16 = 7,530.72 : x
2. Step 2: Convert to fraction form
   21,571.04/32,346.16 = 7,530.72/x
3. Step 3: Cross multiply
   21,571.04x = 32,346.16 × 7,530.72
4. Step 4: Simplify right side
   21,571.04x = 243,589,874.04
5. Step 5: Solve for x
   x = 243,589,874.04/21,571.04
6. Step 6: Final answer
   x = 11,292.45