Finding the Fourth Proportional to 10,591.50, 15,887.25 and 3,666

Step by Step Solution

1. Step 1: Write the proportion equation
   10,591.50 : 15,887.25 = 3,666 : x
2. Step 2: Convert to fraction form
   10,591.50/15,887.25 = 3,666/x
3. Step 3: Cross multiply
   10,591.50x = 15,887.25 × 3,666
4. Step 4: Simplify right side
   10,591.50x = 58,242,658.50
5. Step 5: Solve for x
   x = 58,242,658.50/10,591.50
6. Step 6: Final answer
   x = 5,499