Finding the Fourth Proportional to 11,926.33, 17,892.51 and 8,423.18

Step by Step Solution

1. Step 1: Write the proportion equation
   11,926.33 : 17,892.51 = 8,423.18 : x
2. Step 2: Convert to fraction form
   11,926.33/17,892.51 = 8,423.18/x
3. Step 3: Cross multiply
   11,926.33x = 17,892.51 × 8,423.18
4. Step 4: Simplify right side
   11,926.33x = 150,711,742.92
5. Step 5: Solve for x
   x = 150,711,742.92/11,926.33
6. Step 6: Final answer
   x = 12,636.89