Finding the Fourth Proportional to 13,369.56, 18,449.48 and 7,401.12

Step by Step Solution

1. Step 1: Write the proportion equation
   13,369.56 : 18,449.48 = 7,401.12 : x
2. Step 2: Convert to fraction form
   13,369.56/18,449.48 = 7,401.12/x
3. Step 3: Cross multiply
   13,369.56x = 18,449.48 × 7,401.12
4. Step 4: Simplify right side
   13,369.56x = 136,546,815.42
5. Step 5: Solve for x
   x = 136,546,815.42/13,369.56
6. Step 6: Final answer
   x = 10,213.26