Finding the Fourth Proportional to 11,947.19, 17,912.24 and 5,618.52

Step by Step Solution

1. Step 1: Write the proportion equation
   11,947.19 : 17,912.24 = 5,618.52 : x
2. Step 2: Convert to fraction form
   11,947.19/17,912.24 = 5,618.52/x
3. Step 3: Cross multiply
   11,947.19x = 17,912.24 × 5,618.52
4. Step 4: Simplify right side
   11,947.19x = 100,640,303.27
5. Step 5: Solve for x
   x = 100,640,303.27/11,947.19
6. Step 6: Final answer
   x = 8,423.77