Finding the Fourth Proportional to 11,096.07, 15,314.72 and 7,122.21

Step by Step Solution

1. Step 1: Write the proportion equation
   11,096.07 : 15,314.72 = 7,122.21 : x
2. Step 2: Convert to fraction form
   11,096.07/15,314.72 = 7,122.21/x
3. Step 3: Cross multiply
   11,096.07x = 15,314.72 × 7,122.21
4. Step 4: Simplify right side
   11,096.07x = 109,074,616.32
5. Step 5: Solve for x
   x = 109,074,616.32/11,096.07
6. Step 6: Final answer
   x = 9,830.02