Finding the Fourth Proportional to 9,238.88, 13,861.27 and 3,311.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,238.88 : 13,861.27 = 3,311.76 : x
2. Step 2: Convert to fraction form
   9,238.88/13,861.27 = 3,311.76/x
3. Step 3: Cross multiply
   9,238.88x = 13,861.27 × 3,311.76
4. Step 4: Simplify right side
   9,238.88x = 45,905,199.54
5. Step 5: Solve for x
   x = 45,905,199.54/9,238.88
6. Step 6: Final answer
   x = 4,968.70