Finding the Fourth Proportional to 11,315.12, 15,624.78 and 7,073.43

Step by Step Solution

1. Step 1: Write the proportion equation
   11,315.12 : 15,624.78 = 7,073.43 : x
2. Step 2: Convert to fraction form
   11,315.12/15,624.78 = 7,073.43/x
3. Step 3: Cross multiply
   11,315.12x = 15,624.78 × 7,073.43
4. Step 4: Simplify right side
   11,315.12x = 110,520,709.47
5. Step 5: Solve for x
   x = 110,520,709.47/11,315.12
6. Step 6: Final answer
   x = 9,767.53