Finding the Fourth Proportional to 8,707.69, 13,056.27 and 3,507.49

Step by Step Solution

1. Step 1: Write the proportion equation
   8,707.69 : 13,056.27 = 3,507.49 : x
2. Step 2: Convert to fraction form
   8,707.69/13,056.27 = 3,507.49/x
3. Step 3: Cross multiply
   8,707.69x = 13,056.27 × 3,507.49
4. Step 4: Simplify right side
   8,707.69x = 45,794,736.46
5. Step 5: Solve for x
   x = 45,794,736.46/8,707.69
6. Step 6: Final answer
   x = 5,259.11