Finding the Fourth Proportional to 11,205.60, 15,456.32 and 7,006.56

Step by Step Solution

1. Step 1: Write the proportion equation
   11,205.60 : 15,456.32 = 7,006.56 : x
2. Step 2: Convert to fraction form
   11,205.60/15,456.32 = 7,006.56/x
3. Step 3: Cross multiply
   11,205.60x = 15,456.32 × 7,006.56
4. Step 4: Simplify right side
   11,205.60x = 108,295,633.46
5. Step 5: Solve for x
   x = 108,295,633.46/11,205.60
6. Step 6: Final answer
   x = 9,664.42