Finding the Fourth Proportional to 12,906.09, 19,362.17 and 5,114.90

Step by Step Solution

1. Step 1: Write the proportion equation
   12,906.09 : 19,362.17 = 5,114.90 : x
2. Step 2: Convert to fraction form
   12,906.09/19,362.17 = 5,114.90/x
3. Step 3: Cross multiply
   12,906.09x = 19,362.17 × 5,114.90
4. Step 4: Simplify right side
   12,906.09x = 99,035,563.33
5. Step 5: Solve for x
   x = 99,035,563.33/12,906.09
6. Step 6: Final answer
   x = 7,673.55