Finding the Fourth Proportional to 8,698.72, 13,039.44 and 3,507.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,698.72 : 13,039.44 = 3,507.52 : x
2. Step 2: Convert to fraction form
   8,698.72/13,039.44 = 3,507.52/x
3. Step 3: Cross multiply
   8,698.72x = 13,039.44 × 3,507.52
4. Step 4: Simplify right side
   8,698.72x = 45,736,096.59
5. Step 5: Solve for x
   x = 45,736,096.59/8,698.72
6. Step 6: Final answer
   x = 5,257.80