Finding the Fourth Proportional to 11,819.53, 16,311 and 7,103.89

Step by Step Solution

1. Step 1: Write the proportion equation
   11,819.53 : 16,311 = 7,103.89 : x
2. Step 2: Convert to fraction form
   11,819.53/16,311 = 7,103.89/x
3. Step 3: Cross multiply
   11,819.53x = 16,311 × 7,103.89
4. Step 4: Simplify right side
   11,819.53x = 115,871,549.79
5. Step 5: Solve for x
   x = 115,871,549.79/11,819.53
6. Step 6: Final answer
   x = 9,803.40