Finding the Fourth Proportional to 11,369.74, 15,697.98 and 7,122.56

Step by Step Solution

1. Step 1: Write the proportion equation
   11,369.74 : 15,697.98 = 7,122.56 : x
2. Step 2: Convert to fraction form
   11,369.74/15,697.98 = 7,122.56/x
3. Step 3: Cross multiply
   11,369.74x = 15,697.98 × 7,122.56
4. Step 4: Simplify right side
   11,369.74x = 111,809,804.43
5. Step 5: Solve for x
   x = 111,809,804.43/11,369.74
6. Step 6: Final answer
   x = 9,833.98