Finding the Fourth Proportional to 13,134, 19,704.42 and 3,900

Step by Step Solution

1. Step 1: Write the proportion equation
   13,134 : 19,704.42 = 3,900 : x
2. Step 2: Convert to fraction form
   13,134/19,704.42 = 3,900/x
3. Step 3: Cross multiply
   13,134x = 19,704.42 × 3,900
4. Step 4: Simplify right side
   13,134x = 76,847,238
5. Step 5: Solve for x
   x = 76,847,238/13,134
6. Step 6: Final answer
   x = 5,851.02