Finding the Fourth Proportional to 12,401.40, 18,605.34 and 7,202.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,401.40 : 18,605.34 = 7,202.82 : x
2. Step 2: Convert to fraction form
   12,401.40/18,605.34 = 7,202.82/x
3. Step 3: Cross multiply
   12,401.40x = 18,605.34 × 7,202.82
4. Step 4: Simplify right side
   12,401.40x = 134,010,915.06
5. Step 5: Solve for x
   x = 134,010,915.06/12,401.40
6. Step 6: Final answer
   x = 10,806.11