Finding the Fourth Proportional to 12,439.10, 18,653.18 and 5,041.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,439.10 : 18,653.18 = 5,041.59 : x
2. Step 2: Convert to fraction form
   12,439.10/18,653.18 = 5,041.59/x
3. Step 3: Cross multiply
   12,439.10x = 18,653.18 × 5,041.59
4. Step 4: Simplify right side
   12,439.10x = 94,041,660.55
5. Step 5: Solve for x
   x = 94,041,660.55/12,439.10
6. Step 6: Final answer
   x = 7,560.17