Finding the Fourth Proportional to 23,225.28, 34,824.96 and 7,638.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,225.28 : 34,824.96 = 7,638.72 : x
2. Step 2: Convert to fraction form
   23,225.28/34,824.96 = 7,638.72/x
3. Step 3: Cross multiply
   23,225.28x = 34,824.96 × 7,638.72
4. Step 4: Simplify right side
   23,225.28x = 266,018,118.45
5. Step 5: Solve for x
   x = 266,018,118.45/23,225.28
6. Step 6: Final answer
   x = 11,453.82