Finding the Fourth Proportional to 11,970.27, 16,520.94 and 9,132.29

Step by Step Solution

1. Step 1: Write the proportion equation
   11,970.27 : 16,520.94 = 9,132.29 : x
2. Step 2: Convert to fraction form
   11,970.27/16,520.94 = 9,132.29/x
3. Step 3: Cross multiply
   11,970.27x = 16,520.94 × 9,132.29
4. Step 4: Simplify right side
   11,970.27x = 150,873,886.89
5. Step 5: Solve for x
   x = 150,873,886.89/11,970.27
6. Step 6: Final answer
   x = 12,604.06