Finding the Fourth Proportional to 8,191.63, 12,291.55 and 3,510.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,191.63 : 12,291.55 = 3,510.34 : x
2. Step 2: Convert to fraction form
   8,191.63/12,291.55 = 3,510.34/x
3. Step 3: Cross multiply
   8,191.63x = 12,291.55 × 3,510.34
4. Step 4: Simplify right side
   8,191.63x = 43,147,480.12
5. Step 5: Solve for x
   x = 43,147,480.12/8,191.63
6. Step 6: Final answer
   x = 5,267.26