Finding the Fourth Proportional to 9,002.28, 12,427.20 and 5,418.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,002.28 : 12,427.20 = 5,418.84 : x
2. Step 2: Convert to fraction form
   9,002.28/12,427.20 = 5,418.84/x
3. Step 3: Cross multiply
   9,002.28x = 12,427.20 × 5,418.84
4. Step 4: Simplify right side
   9,002.28x = 67,341,008.45
5. Step 5: Solve for x
   x = 67,341,008.45/9,002.28
6. Step 6: Final answer
   x = 7,480.44