Finding the Fourth Proportional to 13,401.05, 18,494.06 and 7,432.36

Step by Step Solution

1. Step 1: Write the proportion equation
   13,401.05 : 18,494.06 = 7,432.36 : x
2. Step 2: Convert to fraction form
   13,401.05/18,494.06 = 7,432.36/x
3. Step 3: Cross multiply
   13,401.05x = 18,494.06 × 7,432.36
4. Step 4: Simplify right side
   13,401.05x = 137,454,511.78
5. Step 5: Solve for x
   x = 137,454,511.78/13,401.05
6. Step 6: Final answer
   x = 10,257.00