Finding the Fourth Proportional to 12,679.89, 19,022.06 and 4,360.77

Step by Step Solution

1. Step 1: Write the proportion equation
   12,679.89 : 19,022.06 = 4,360.77 : x
2. Step 2: Convert to fraction form
   12,679.89/19,022.06 = 4,360.77/x
3. Step 3: Cross multiply
   12,679.89x = 19,022.06 × 4,360.77
4. Step 4: Simplify right side
   12,679.89x = 82,950,806.78
5. Step 5: Solve for x
   x = 82,950,806.78/12,679.89
6. Step 6: Final answer
   x = 6,541.92