Finding the Fourth Proportional to 12,499.82, 18,751.20 and 4,180.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,499.82 : 18,751.20 = 4,180.94 : x
2. Step 2: Convert to fraction form
   12,499.82/18,751.20 = 4,180.94/x
3. Step 3: Cross multiply
   12,499.82x = 18,751.20 × 4,180.94
4. Step 4: Simplify right side
   12,499.82x = 78,397,642.13
5. Step 5: Solve for x
   x = 78,397,642.13/12,499.82
6. Step 6: Final answer
   x = 6,271.90