Finding the Fourth Proportional to 13,524.72, 18,664.74 and 7,556.28

Step by Step Solution

1. Step 1: Write the proportion equation
   13,524.72 : 18,664.74 = 7,556.28 : x
2. Step 2: Convert to fraction form
   13,524.72/18,664.74 = 7,556.28/x
3. Step 3: Cross multiply
   13,524.72x = 18,664.74 × 7,556.28
4. Step 4: Simplify right side
   13,524.72x = 141,036,001.57
5. Step 5: Solve for x
   x = 141,036,001.57/13,524.72
6. Step 6: Final answer
   x = 10,428.02