Finding the Fourth Proportional to 12,499.50, 18,742.87 and 4,176.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,499.50 : 18,742.87 = 4,176.52 : x
2. Step 2: Convert to fraction form
   12,499.50/18,742.87 = 4,176.52/x
3. Step 3: Cross multiply
   12,499.50x = 18,742.87 × 4,176.52
4. Step 4: Simplify right side
   12,499.50x = 78,279,971.41
5. Step 5: Solve for x
   x = 78,279,971.41/12,499.50
6. Step 6: Final answer
   x = 6,262.65