Finding the Fourth Proportional to 8,150.74, 12,218.91 and 3,531.22

Step by Step Solution

1. Step 1: Write the proportion equation
   8,150.74 : 12,218.91 = 3,531.22 : x
2. Step 2: Convert to fraction form
   8,150.74/12,218.91 = 3,531.22/x
3. Step 3: Cross multiply
   8,150.74x = 12,218.91 × 3,531.22
4. Step 4: Simplify right side
   8,150.74x = 43,147,659.37
5. Step 5: Solve for x
   x = 43,147,659.37/8,150.74
6. Step 6: Final answer
   x = 5,293.71