Finding the Fourth Proportional to 16,406.78, 24,614.06 and 5,313.45

Step by Step Solution

1. Step 1: Write the proportion equation
   16,406.78 : 24,614.06 = 5,313.45 : x
2. Step 2: Convert to fraction form
   16,406.78/24,614.06 = 5,313.45/x
3. Step 3: Cross multiply
   16,406.78x = 24,614.06 × 5,313.45
4. Step 4: Simplify right side
   16,406.78x = 130,785,672.73
5. Step 5: Solve for x
   x = 130,785,672.73/16,406.78
6. Step 6: Final answer
   x = 7,971.44