Finding the Fourth Proportional to 10,962.37, 16,424.72 and 8,637.27

Step by Step Solution

1. Step 1: Write the proportion equation
   10,962.37 : 16,424.72 = 8,637.27 : x
2. Step 2: Convert to fraction form
   10,962.37/16,424.72 = 8,637.27/x
3. Step 3: Cross multiply
   10,962.37x = 16,424.72 × 8,637.27
4. Step 4: Simplify right side
   10,962.37x = 141,864,741.31
5. Step 5: Solve for x
   x = 141,864,741.31/10,962.37
6. Step 6: Final answer
   x = 12,941.06