Finding the Fourth Proportional to 17,916.29, 26,874.49 and 5,436.41

Step by Step Solution

1. Step 1: Write the proportion equation
   17,916.29 : 26,874.49 = 5,436.41 : x
2. Step 2: Convert to fraction form
   17,916.29/26,874.49 = 5,436.41/x
3. Step 3: Cross multiply
   17,916.29x = 26,874.49 × 5,436.41
4. Step 4: Simplify right side
   17,916.29x = 146,100,799.78
5. Step 5: Solve for x
   x = 146,100,799.78/17,916.29
6. Step 6: Final answer
   x = 8,154.64