Finding the Fourth Proportional to 9,049.60, 13,636.05 and 7,442.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,049.60 : 13,636.05 = 7,442.15 : x
2. Step 2: Convert to fraction form
   9,049.60/13,636.05 = 7,442.15/x
3. Step 3: Cross multiply
   9,049.60x = 13,636.05 × 7,442.15
4. Step 4: Simplify right side
   9,049.60x = 101,481,492.30
5. Step 5: Solve for x
   x = 101,481,492.30/9,049.60
6. Step 6: Final answer
   x = 11,213.93