Finding the Fourth Proportional to 9,423.20, 13,003.81 and 5,445.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,423.20 : 13,003.81 = 5,445.56 : x
2. Step 2: Convert to fraction form
   9,423.20/13,003.81 = 5,445.56/x
3. Step 3: Cross multiply
   9,423.20x = 13,003.81 × 5,445.56
4. Step 4: Simplify right side
   9,423.20x = 70,813,046.48
5. Step 5: Solve for x
   x = 70,813,046.48/9,423.20
6. Step 6: Final answer
   x = 7,514.75