Finding the Fourth Proportional to 8,828.24, 12,181.92 and 5,290.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,828.24 : 12,181.92 = 5,290.88 : x
2. Step 2: Convert to fraction form
   8,828.24/12,181.92 = 5,290.88/x
3. Step 3: Cross multiply
   8,828.24x = 12,181.92 × 5,290.88
4. Step 4: Simplify right side
   8,828.24x = 64,453,076.89
5. Step 5: Solve for x
   x = 64,453,076.89/8,828.24
6. Step 6: Final answer
   x = 7,300.78