Finding the Fourth Proportional to 12,916.16, 19,360.56 and 5,514.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,916.16 : 19,360.56 = 5,514.56 : x
2. Step 2: Convert to fraction form
   12,916.16/19,360.56 = 5,514.56/x
3. Step 3: Cross multiply
   12,916.16x = 19,360.56 × 5,514.56
4. Step 4: Simplify right side
   12,916.16x = 106,764,969.75
5. Step 5: Solve for x
   x = 106,764,969.75/12,916.16
6. Step 6: Final answer
   x = 8,266.00