Finding the Fourth Proportional to 13,414.20, 18,511.56 and 7,445.94

Step by Step Solution

1. Step 1: Write the proportion equation
   13,414.20 : 18,511.56 = 7,445.94 : x
2. Step 2: Convert to fraction form
   13,414.20/18,511.56 = 7,445.94/x
3. Step 3: Cross multiply
   13,414.20x = 18,511.56 × 7,445.94
4. Step 4: Simplify right side
   13,414.20x = 137,835,853.89
5. Step 5: Solve for x
   x = 137,835,853.89/13,414.20
6. Step 6: Final answer
   x = 10,275.37