Finding the Fourth Proportional to 11,752.72, 17,628.72 and 4,822

Step by Step Solution

1. Step 1: Write the proportion equation
   11,752.72 : 17,628.72 = 4,822 : x
2. Step 2: Convert to fraction form
   11,752.72/17,628.72 = 4,822/x
3. Step 3: Cross multiply
   11,752.72x = 17,628.72 × 4,822
4. Step 4: Simplify right side
   11,752.72x = 85,005,687.84
5. Step 5: Solve for x
   x = 85,005,687.84/11,752.72
6. Step 6: Final answer
   x = 7,232.85