Finding the Fourth Proportional to 10,586.48, 15,882.89 and 3,191.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,586.48 : 15,882.89 = 3,191.18 : x
2. Step 2: Convert to fraction form
   10,586.48/15,882.89 = 3,191.18/x
3. Step 3: Cross multiply
   10,586.48x = 15,882.89 × 3,191.18
4. Step 4: Simplify right side
   10,586.48x = 50,685,065.54
5. Step 5: Solve for x
   x = 50,685,065.54/10,586.48
6. Step 6: Final answer
   x = 4,787.72