Finding the Fourth Proportional to 13,104.59, 19,659.96 and 4,339.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,104.59 : 19,659.96 = 4,339.50 : x
2. Step 2: Convert to fraction form
   13,104.59/19,659.96 = 4,339.50/x
3. Step 3: Cross multiply
   13,104.59x = 19,659.96 × 4,339.50
4. Step 4: Simplify right side
   13,104.59x = 85,314,396.42
5. Step 5: Solve for x
   x = 85,314,396.42/13,104.59
6. Step 6: Final answer
   x = 6,510.27