Finding the Fourth Proportional to 13,337.71, 18,406.41 and 7,963.27

Step by Step Solution

1. Step 1: Write the proportion equation
   13,337.71 : 18,406.41 = 7,963.27 : x
2. Step 2: Convert to fraction form
   13,337.71/18,406.41 = 7,963.27/x
3. Step 3: Cross multiply
   13,337.71x = 18,406.41 × 7,963.27
4. Step 4: Simplify right side
   13,337.71x = 146,575,212.56
5. Step 5: Solve for x
   x = 146,575,212.56/13,337.71
6. Step 6: Final answer
   x = 10,989.53