Finding the Fourth Proportional to 11,451.50, 15,797.27 and 7,141.05

Step by Step Solution

1. Step 1: Write the proportion equation
   11,451.50 : 15,797.27 = 7,141.05 : x
2. Step 2: Convert to fraction form
   11,451.50/15,797.27 = 7,141.05/x
3. Step 3: Cross multiply
   11,451.50x = 15,797.27 × 7,141.05
4. Step 4: Simplify right side
   11,451.50x = 112,809,094.93
5. Step 5: Solve for x
   x = 112,809,094.93/11,451.50
6. Step 6: Final answer
   x = 9,851.03