Finding the Fourth Proportional to 14,088.96, 19,443.02 and 7,715.57

Step by Step Solution

1. Step 1: Write the proportion equation
   14,088.96 : 19,443.02 = 7,715.57 : x
2. Step 2: Convert to fraction form
   14,088.96/19,443.02 = 7,715.57/x
3. Step 3: Cross multiply
   14,088.96x = 19,443.02 × 7,715.57
4. Step 4: Simplify right side
   14,088.96x = 150,013,846.03
5. Step 5: Solve for x
   x = 150,013,846.03/14,088.96
6. Step 6: Final answer
   x = 10,647.62