Finding the Fourth Proportional to 12,498.99, 18,742.30 and 4,176.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,498.99 : 18,742.30 = 4,176.15 : x
2. Step 2: Convert to fraction form
   12,498.99/18,742.30 = 4,176.15/x
3. Step 3: Cross multiply
   12,498.99x = 18,742.30 × 4,176.15
4. Step 4: Simplify right side
   12,498.99x = 78,270,656.15
5. Step 5: Solve for x
   x = 78,270,656.15/12,498.99
6. Step 6: Final answer
   x = 6,262.16