Finding the Fourth Proportional to 13,401.24, 18,494.85 and 7,434.83

Step by Step Solution

1. Step 1: Write the proportion equation
   13,401.24 : 18,494.85 = 7,434.83 : x
2. Step 2: Convert to fraction form
   13,401.24/18,494.85 = 7,434.83/x
3. Step 3: Cross multiply
   13,401.24x = 18,494.85 × 7,434.83
4. Step 4: Simplify right side
   13,401.24x = 137,506,065.63
5. Step 5: Solve for x
   x = 137,506,065.63/13,401.24
6. Step 6: Final answer
   x = 10,260.70