Finding the Fourth Proportional to 13,266.24, 19,900.59 and 3,906.27

Step by Step Solution

1. Step 1: Write the proportion equation
   13,266.24 : 19,900.59 = 3,906.27 : x
2. Step 2: Convert to fraction form
   13,266.24/19,900.59 = 3,906.27/x
3. Step 3: Cross multiply
   13,266.24x = 19,900.59 × 3,906.27
4. Step 4: Simplify right side
   13,266.24x = 77,737,077.70
5. Step 5: Solve for x
   x = 77,737,077.70/13,266.24
6. Step 6: Final answer
   x = 5,859.77