Finding the Fourth Proportional to 8,807.72, 12,154.72 and 4,828.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,807.72 : 12,154.72 = 4,828.88 : x
2. Step 2: Convert to fraction form
   8,807.72/12,154.72 = 4,828.88/x
3. Step 3: Cross multiply
   8,807.72x = 12,154.72 × 4,828.88
4. Step 4: Simplify right side
   8,807.72x = 58,693,684.31
5. Step 5: Solve for x
   x = 58,693,684.31/8,807.72
6. Step 6: Final answer
   x = 6,663.89