Finding the Fourth Proportional to 13,104.16, 19,659.36 and 3,870.16

Step by Step Solution

1. Step 1: Write the proportion equation
   13,104.16 : 19,659.36 = 3,870.16 : x
2. Step 2: Convert to fraction form
   13,104.16/19,659.36 = 3,870.16/x
3. Step 3: Cross multiply
   13,104.16x = 19,659.36 × 3,870.16
4. Step 4: Simplify right side
   13,104.16x = 76,084,868.70
5. Step 5: Solve for x
   x = 76,084,868.70/13,104.16
6. Step 6: Final answer
   x = 5,806.16