Finding the Fourth Proportional to 22,491.72, 33,714.88 and 7,690.56

Step by Step Solution

1. Step 1: Write the proportion equation
   22,491.72 : 33,714.88 = 7,690.56 : x
2. Step 2: Convert to fraction form
   22,491.72/33,714.88 = 7,690.56/x
3. Step 3: Cross multiply
   22,491.72x = 33,714.88 × 7,690.56
4. Step 4: Simplify right side
   22,491.72x = 259,286,307.53
5. Step 5: Solve for x
   x = 259,286,307.53/22,491.72
6. Step 6: Final answer
   x = 11,528.08