Finding the Fourth Proportional to 8,807.76, 12,154.89 and 4,828.77

Step by Step Solution

1. Step 1: Write the proportion equation
   8,807.76 : 12,154.89 = 4,828.77 : x
2. Step 2: Convert to fraction form
   8,807.76/12,154.89 = 4,828.77/x
3. Step 3: Cross multiply
   8,807.76x = 12,154.89 × 4,828.77
4. Step 4: Simplify right side
   8,807.76x = 58,693,168.19
5. Step 5: Solve for x
   x = 58,693,168.19/8,807.76
6. Step 6: Final answer
   x = 6,663.80