Finding the Fourth Proportional to 8,162.29, 12,235.61 and 5,191.53

Step by Step Solution

1. Step 1: Write the proportion equation
   8,162.29 : 12,235.61 = 5,191.53 : x
2. Step 2: Convert to fraction form
   8,162.29/12,235.61 = 5,191.53/x
3. Step 3: Cross multiply
   8,162.29x = 12,235.61 × 5,191.53
4. Step 4: Simplify right side
   8,162.29x = 63,521,474.28
5. Step 5: Solve for x
   x = 63,521,474.28/8,162.29
6. Step 6: Final answer
   x = 7,782.31