Finding the Fourth Proportional to 8,782.38, 12,119.88 and 5,427.49

Step by Step Solution

1. Step 1: Write the proportion equation
   8,782.38 : 12,119.88 = 5,427.49 : x
2. Step 2: Convert to fraction form
   8,782.38/12,119.88 = 5,427.49/x
3. Step 3: Cross multiply
   8,782.38x = 12,119.88 × 5,427.49
4. Step 4: Simplify right side
   8,782.38x = 65,780,527.50
5. Step 5: Solve for x
   x = 65,780,527.50/8,782.38
6. Step 6: Final answer
   x = 7,490.06