Finding the Fourth Proportional to 12,856.48, 17,734.56 and 7,550.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,856.48 : 17,734.56 = 7,550.32 : x
2. Step 2: Convert to fraction form
   12,856.48/17,734.56 = 7,550.32/x
3. Step 3: Cross multiply
   12,856.48x = 17,734.56 × 7,550.32
4. Step 4: Simplify right side
   12,856.48x = 133,901,603.06
5. Step 5: Solve for x
   x = 133,901,603.06/12,856.48
6. Step 6: Final answer
   x = 10,415.11