Finding the Fourth Proportional to 9,341.36, 12,891.72 and 5,363.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,341.36 : 12,891.72 = 5,363.60 : x
2. Step 2: Convert to fraction form
   9,341.36/12,891.72 = 5,363.60/x
3. Step 3: Cross multiply
   9,341.36x = 12,891.72 × 5,363.60
4. Step 4: Simplify right side
   9,341.36x = 69,146,029.39
5. Step 5: Solve for x
   x = 69,146,029.39/9,341.36
6. Step 6: Final answer
   x = 7,402.14