Finding the Fourth Proportional to 12,308.74, 18,433.68 and 7,098.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,308.74 : 18,433.68 = 7,098.82 : x
2. Step 2: Convert to fraction form
   12,308.74/18,433.68 = 7,098.82/x
3. Step 3: Cross multiply
   12,308.74x = 18,433.68 × 7,098.82
4. Step 4: Simplify right side
   12,308.74x = 130,857,376.26
5. Step 5: Solve for x
   x = 130,857,376.26/12,308.74
6. Step 6: Final answer
   x = 10,631.26