Finding the Fourth Proportional to 13,401.52, 18,496.31 and 7,435.11

Step by Step Solution

1. Step 1: Write the proportion equation
   13,401.52 : 18,496.31 = 7,435.11 : x
2. Step 2: Convert to fraction form
   13,401.52/18,496.31 = 7,435.11/x
3. Step 3: Cross multiply
   13,401.52x = 18,496.31 × 7,435.11
4. Step 4: Simplify right side
   13,401.52x = 137,521,997.55
5. Step 5: Solve for x
   x = 137,521,997.55/13,401.52
6. Step 6: Final answer
   x = 10,261.67