Finding the Fourth Proportional to 10,983.21, 15,156.80 and 5,947.43

Step by Step Solution

1. Step 1: Write the proportion equation
   10,983.21 : 15,156.80 = 5,947.43 : x
2. Step 2: Convert to fraction form
   10,983.21/15,156.80 = 5,947.43/x
3. Step 3: Cross multiply
   10,983.21x = 15,156.80 × 5,947.43
4. Step 4: Simplify right side
   10,983.21x = 90,144,007.02
5. Step 5: Solve for x
   x = 90,144,007.02/10,983.21
6. Step 6: Final answer
   x = 8,207.44