Finding the Fourth Proportional to 10,983.17, 15,156.79 and 5,947.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,983.17 : 15,156.79 = 5,947.40 : x
2. Step 2: Convert to fraction form
   10,983.17/15,156.79 = 5,947.40/x
3. Step 3: Cross multiply
   10,983.17x = 15,156.79 × 5,947.40
4. Step 4: Simplify right side
   10,983.17x = 90,143,515.87
5. Step 5: Solve for x
   x = 90,143,515.87/10,983.17
6. Step 6: Final answer
   x = 8,207.42