Finding the Fourth Proportional to 9,003.90, 12,425.43 and 5,227.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,003.90 : 12,425.43 = 5,227.86 : x
2. Step 2: Convert to fraction form
   9,003.90/12,425.43 = 5,227.86/x
3. Step 3: Cross multiply
   9,003.90x = 12,425.43 × 5,227.86
4. Step 4: Simplify right side
   9,003.90x = 64,958,408.48
5. Step 5: Solve for x
   x = 64,958,408.48/9,003.90
6. Step 6: Final answer
   x = 7,214.47