Finding the Fourth Proportional to 13,404.30, 18,497.18 and 7,435.54

Step by Step Solution

1. Step 1: Write the proportion equation
   13,404.30 : 18,497.18 = 7,435.54 : x
2. Step 2: Convert to fraction form
   13,404.30/18,497.18 = 7,435.54/x
3. Step 3: Cross multiply
   13,404.30x = 18,497.18 × 7,435.54
4. Step 4: Simplify right side
   13,404.30x = 137,536,521.78
5. Step 5: Solve for x
   x = 137,536,521.78/13,404.30
6. Step 6: Final answer
   x = 10,260.63