Finding the Fourth Proportional to 12,342.56, 18,508.23 and 7,662.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,342.56 : 18,508.23 = 7,662.38 : x
2. Step 2: Convert to fraction form
   12,342.56/18,508.23 = 7,662.38/x
3. Step 3: Cross multiply
   12,342.56x = 18,508.23 × 7,662.38
4. Step 4: Simplify right side
   12,342.56x = 141,817,091.39
5. Step 5: Solve for x
   x = 141,817,091.39/12,342.56
6. Step 6: Final answer
   x = 11,490.09