Finding the Fourth Proportional to 12,419.81, 18,642.98 and 5,029.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,419.81 : 18,642.98 = 5,029.10 : x
2. Step 2: Convert to fraction form
   12,419.81/18,642.98 = 5,029.10/x
3. Step 3: Cross multiply
   12,419.81x = 18,642.98 × 5,029.10
4. Step 4: Simplify right side
   12,419.81x = 93,757,410.72
5. Step 5: Solve for x
   x = 93,757,410.72/12,419.81
6. Step 6: Final answer
   x = 7,549.02