Finding the Fourth Proportional to 11,591.08, 17,394.78 and 7,211.56

Step by Step Solution

1. Step 1: Write the proportion equation
   11,591.08 : 17,394.78 = 7,211.56 : x
2. Step 2: Convert to fraction form
   11,591.08/17,394.78 = 7,211.56/x
3. Step 3: Cross multiply
   11,591.08x = 17,394.78 × 7,211.56
4. Step 4: Simplify right side
   11,591.08x = 125,443,499.66
5. Step 5: Solve for x
   x = 125,443,499.66/11,591.08
6. Step 6: Final answer
   x = 10,822.42