Finding the Fourth Proportional to 10,298.67, 14,198.42 and 8,181.23

Step by Step Solution

1. Step 1: Write the proportion equation
   10,298.67 : 14,198.42 = 8,181.23 : x
2. Step 2: Convert to fraction form
   10,298.67/14,198.42 = 8,181.23/x
3. Step 3: Cross multiply
   10,298.67x = 14,198.42 × 8,181.23
4. Step 4: Simplify right side
   10,298.67x = 116,160,568.98
5. Step 5: Solve for x
   x = 116,160,568.98/10,298.67
6. Step 6: Final answer
   x = 11,279.18