Finding the Fourth Proportional to 11,947.18, 16,489.83 and 7,748.14

Step by Step Solution

1. Step 1: Write the proportion equation
   11,947.18 : 16,489.83 = 7,748.14 : x
2. Step 2: Convert to fraction form
   11,947.18/16,489.83 = 7,748.14/x
3. Step 3: Cross multiply
   11,947.18x = 16,489.83 × 7,748.14
4. Step 4: Simplify right side
   11,947.18x = 127,765,511.42
5. Step 5: Solve for x
   x = 127,765,511.42/11,947.18
6. Step 6: Final answer
   x = 10,694.20