Finding the Fourth Proportional to 8,710.72, 13,064.86 and 3,515.38

Step by Step Solution

1. Step 1: Write the proportion equation
   8,710.72 : 13,064.86 = 3,515.38 : x
2. Step 2: Convert to fraction form
   8,710.72/13,064.86 = 3,515.38/x
3. Step 3: Cross multiply
   8,710.72x = 13,064.86 × 3,515.38
4. Step 4: Simplify right side
   8,710.72x = 45,927,947.55
5. Step 5: Solve for x
   x = 45,927,947.55/8,710.72
6. Step 6: Final answer
   x = 5,272.58