Finding the Fourth Proportional to 9,612.89, 13,265.39 and 5,364.13

Step by Step Solution

1. Step 1: Write the proportion equation
   9,612.89 : 13,265.39 = 5,364.13 : x
2. Step 2: Convert to fraction form
   9,612.89/13,265.39 = 5,364.13/x
3. Step 3: Cross multiply
   9,612.89x = 13,265.39 × 5,364.13
4. Step 4: Simplify right side
   9,612.89x = 71,157,306.45
5. Step 5: Solve for x
   x = 71,157,306.45/9,612.89
6. Step 6: Final answer
   x = 7,402.28