Finding the Fourth Proportional to 11,892.72, 17,822.66 and 8,967.81

Step by Step Solution

1. Step 1: Write the proportion equation
   11,892.72 : 17,822.66 = 8,967.81 : x
2. Step 2: Convert to fraction form
   11,892.72/17,822.66 = 8,967.81/x
3. Step 3: Cross multiply
   11,892.72x = 17,822.66 × 8,967.81
4. Step 4: Simplify right side
   11,892.72x = 159,830,228.57
5. Step 5: Solve for x
   x = 159,830,228.57/11,892.72
6. Step 6: Final answer
   x = 13,439.33