Finding the Fourth Proportional to 9,288.86, 12,816.72 and 5,510.37

Step by Step Solution

1. Step 1: Write the proportion equation
   9,288.86 : 12,816.72 = 5,510.37 : x
2. Step 2: Convert to fraction form
   9,288.86/12,816.72 = 5,510.37/x
3. Step 3: Cross multiply
   9,288.86x = 12,816.72 × 5,510.37
4. Step 4: Simplify right side
   9,288.86x = 70,624,869.39
5. Step 5: Solve for x
   x = 70,624,869.39/9,288.86
6. Step 6: Final answer
   x = 7,603.18