Finding the Fourth Proportional to 12,499, 18,742.12 and 4,176.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,499 : 18,742.12 = 4,176.02 : x
2. Step 2: Convert to fraction form
   12,499/18,742.12 = 4,176.02/x
3. Step 3: Cross multiply
   12,499x = 18,742.12 × 4,176.02
4. Step 4: Simplify right side
   12,499x = 78,267,467.96
5. Step 5: Solve for x
   x = 78,267,467.96/12,499
6. Step 6: Final answer
   x = 6,261.90