Finding the Fourth Proportional to 10,109.49, 15,153.98 and 3,867.90

Step by Step Solution

1. Step 1: Write the proportion equation
   10,109.49 : 15,153.98 = 3,867.90 : x
2. Step 2: Convert to fraction form
   10,109.49/15,153.98 = 3,867.90/x
3. Step 3: Cross multiply
   10,109.49x = 15,153.98 × 3,867.90
4. Step 4: Simplify right side
   10,109.49x = 58,614,059.90
5. Step 5: Solve for x
   x = 58,614,059.90/10,109.49
6. Step 6: Final answer
   x = 5,797.92