Finding the Fourth Proportional to 12,419.55, 18,625.37 and 4,098.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,419.55 : 18,625.37 = 4,098.02 : x
2. Step 2: Convert to fraction form
   12,419.55/18,625.37 = 4,098.02/x
3. Step 3: Cross multiply
   12,419.55x = 18,625.37 × 4,098.02
4. Step 4: Simplify right side
   12,419.55x = 76,327,025.15
5. Step 5: Solve for x
   x = 76,327,025.15/12,419.55
6. Step 6: Final answer
   x = 6,145.72