Finding the Fourth Proportional to 11,091.21, 15,301.02 and 7,309.53

Step by Step Solution

1. Step 1: Write the proportion equation
   11,091.21 : 15,301.02 = 7,309.53 : x
2. Step 2: Convert to fraction form
   11,091.21/15,301.02 = 7,309.53/x
3. Step 3: Cross multiply
   11,091.21x = 15,301.02 × 7,309.53
4. Step 4: Simplify right side
   11,091.21x = 111,843,264.72
5. Step 5: Solve for x
   x = 111,843,264.72/11,091.21
6. Step 6: Final answer
   x = 10,083.96