Finding the Fourth Proportional to 11,824.70, 16,320.03 and 7,111.58

Step by Step Solution

1. Step 1: Write the proportion equation
   11,824.70 : 16,320.03 = 7,111.58 : x
2. Step 2: Convert to fraction form
   11,824.70/16,320.03 = 7,111.58/x
3. Step 3: Cross multiply
   11,824.70x = 16,320.03 × 7,111.58
4. Step 4: Simplify right side
   11,824.70x = 116,061,198.95
5. Step 5: Solve for x
   x = 116,061,198.95/11,824.70
6. Step 6: Final answer
   x = 9,815.15