Finding the Fourth Proportional to 10,983.42, 16,476.78 and 3,191.22

Step by Step Solution

1. Step 1: Write the proportion equation
   10,983.42 : 16,476.78 = 3,191.22 : x
2. Step 2: Convert to fraction form
   10,983.42/16,476.78 = 3,191.22/x
3. Step 3: Cross multiply
   10,983.42x = 16,476.78 × 3,191.22
4. Step 4: Simplify right side
   10,983.42x = 52,581,029.87
5. Step 5: Solve for x
   x = 52,581,029.87/10,983.42
6. Step 6: Final answer
   x = 4,787.31