Finding the Fourth Proportional to 11,608.42, 17,395.60 and 7,212.54

Step by Step Solution

1. Step 1: Write the proportion equation
   11,608.42 : 17,395.60 = 7,212.54 : x
2. Step 2: Convert to fraction form
   11,608.42/17,395.60 = 7,212.54/x
3. Step 3: Cross multiply
   11,608.42x = 17,395.60 × 7,212.54
4. Step 4: Simplify right side
   11,608.42x = 125,466,460.82
5. Step 5: Solve for x
   x = 125,466,460.82/11,608.42
6. Step 6: Final answer
   x = 10,808.23