Finding the Fourth Proportional to 11,818.43, 16,308.78 and 7,342.08

Step by Step Solution

1. Step 1: Write the proportion equation
   11,818.43 : 16,308.78 = 7,342.08 : x
2. Step 2: Convert to fraction form
   11,818.43/16,308.78 = 7,342.08/x
3. Step 3: Cross multiply
   11,818.43x = 16,308.78 × 7,342.08
4. Step 4: Simplify right side
   11,818.43x = 119,740,367.46
5. Step 5: Solve for x
   x = 119,740,367.46/11,818.43
6. Step 6: Final answer
   x = 10,131.67