Finding the Fourth Proportional to 8,462.31, 12,696.72 and 3,530.64

Step by Step Solution

1. Step 1: Write the proportion equation
   8,462.31 : 12,696.72 = 3,530.64 : x
2. Step 2: Convert to fraction form
   8,462.31/12,696.72 = 3,530.64/x
3. Step 3: Cross multiply
   8,462.31x = 12,696.72 × 3,530.64
4. Step 4: Simplify right side
   8,462.31x = 44,827,547.50
5. Step 5: Solve for x
   x = 44,827,547.50/8,462.31
6. Step 6: Final answer
   x = 5,297.32