Finding the Fourth Proportional to 11,404.89, 15,734.19 and 7,424.55

Step by Step Solution

1. Step 1: Write the proportion equation
   11,404.89 : 15,734.19 = 7,424.55 : x
2. Step 2: Convert to fraction form
   11,404.89/15,734.19 = 7,424.55/x
3. Step 3: Cross multiply
   11,404.89x = 15,734.19 × 7,424.55
4. Step 4: Simplify right side
   11,404.89x = 116,819,280.36
5. Step 5: Solve for x
   x = 116,819,280.36/11,404.89
6. Step 6: Final answer
   x = 10,242.91