Finding the Fourth Proportional to 11,401.54, 15,734.39 and 7,152.77

Step by Step Solution

1. Step 1: Write the proportion equation
   11,401.54 : 15,734.39 = 7,152.77 : x
2. Step 2: Convert to fraction form
   11,401.54/15,734.39 = 7,152.77/x
3. Step 3: Cross multiply
   11,401.54x = 15,734.39 × 7,152.77
4. Step 4: Simplify right side
   11,401.54x = 112,544,476.33
5. Step 5: Solve for x
   x = 112,544,476.33/11,401.54
6. Step 6: Final answer
   x = 9,870.99