Finding the Fourth Proportional to 8,782.38, 12,118.82 and 5,198.67

Step by Step Solution

1. Step 1: Write the proportion equation
   8,782.38 : 12,118.82 = 5,198.67 : x
2. Step 2: Convert to fraction form
   8,782.38/12,118.82 = 5,198.67/x
3. Step 3: Cross multiply
   8,782.38x = 12,118.82 × 5,198.67
4. Step 4: Simplify right side
   8,782.38x = 63,001,719.98
5. Step 5: Solve for x
   x = 63,001,719.98/8,782.38
6. Step 6: Final answer
   x = 7,173.65