Finding the Fourth Proportional to 11,570.56, 15,969.86 and 7,542.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,570.56 : 15,969.86 = 7,542.42 : x
2. Step 2: Convert to fraction form
   11,570.56/15,969.86 = 7,542.42/x
3. Step 3: Cross multiply
   11,570.56x = 15,969.86 × 7,542.42
4. Step 4: Simplify right side
   11,570.56x = 120,451,391.46
5. Step 5: Solve for x
   x = 120,451,391.46/11,570.56
6. Step 6: Final answer
   x = 10,410.16