Finding the Fourth Proportional to 9,003.72, 12,423.15 and 5,224.70

Step by Step Solution

1. Step 1: Write the proportion equation
   9,003.72 : 12,423.15 = 5,224.70 : x
2. Step 2: Convert to fraction form
   9,003.72/12,423.15 = 5,224.70/x
3. Step 3: Cross multiply
   9,003.72x = 12,423.15 × 5,224.70
4. Step 4: Simplify right side
   9,003.72x = 64,907,231.81
5. Step 5: Solve for x
   x = 64,907,231.81/9,003.72
6. Step 6: Final answer
   x = 7,208.93