Finding the Fourth Proportional to 11,314.72, 15,624.82 and 7,288.55

Step by Step Solution

1. Step 1: Write the proportion equation
   11,314.72 : 15,624.82 = 7,288.55 : x
2. Step 2: Convert to fraction form
   11,314.72/15,624.82 = 7,288.55/x
3. Step 3: Cross multiply
   11,314.72x = 15,624.82 × 7,288.55
4. Step 4: Simplify right side
   11,314.72x = 113,882,167.24
5. Step 5: Solve for x
   x = 113,882,167.24/11,314.72
6. Step 6: Final answer
   x = 10,064.96