Finding the Fourth Proportional to 13,404.29, 18,497.05 and 7,435.55

Step by Step Solution

1. Step 1: Write the proportion equation
   13,404.29 : 18,497.05 = 7,435.55 : x
2. Step 2: Convert to fraction form
   13,404.29/18,497.05 = 7,435.55/x
3. Step 3: Cross multiply
   13,404.29x = 18,497.05 × 7,435.55
4. Step 4: Simplify right side
   13,404.29x = 137,535,767.78
5. Step 5: Solve for x
   x = 137,535,767.78/13,404.29
6. Step 6: Final answer
   x = 10,260.58