Finding the Fourth Proportional to 13,401.63, 18,495.17 and 7,433.85

Step by Step Solution

1. Step 1: Write the proportion equation
   13,401.63 : 18,495.17 = 7,433.85 : x
2. Step 2: Convert to fraction form
   13,401.63/18,495.17 = 7,433.85/x
3. Step 3: Cross multiply
   13,401.63x = 18,495.17 × 7,433.85
4. Step 4: Simplify right side
   13,401.63x = 137,490,282.34
5. Step 5: Solve for x
   x = 137,490,282.34/13,401.63
6. Step 6: Final answer
   x = 10,259.22