Finding the Fourth Proportional to 8,322.79, 12,486.69 and 3,516.51

Step by Step Solution

1. Step 1: Write the proportion equation
   8,322.79 : 12,486.69 = 3,516.51 : x
2. Step 2: Convert to fraction form
   8,322.79/12,486.69 = 3,516.51/x
3. Step 3: Cross multiply
   8,322.79x = 12,486.69 × 3,516.51
4. Step 4: Simplify right side
   8,322.79x = 43,909,609.66
5. Step 5: Solve for x
   x = 43,909,609.66/8,322.79
6. Step 6: Final answer
   x = 5,275.83