Finding the Fourth Proportional to 16,313.86, 22,510.47 and 9,238.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,313.86 : 22,510.47 = 9,238.78 : x
2. Step 2: Convert to fraction form
   16,313.86/22,510.47 = 9,238.78/x
3. Step 3: Cross multiply
   16,313.86x = 22,510.47 × 9,238.78
4. Step 4: Simplify right side
   16,313.86x = 207,969,280.03
5. Step 5: Solve for x
   x = 207,969,280.03/16,313.86
6. Step 6: Final answer
   x = 12,748.01