Finding the Fourth Proportional to 8,820.25, 12,171.81 and 5,043.77

Step by Step Solution

1. Step 1: Write the proportion equation
   8,820.25 : 12,171.81 = 5,043.77 : x
2. Step 2: Convert to fraction form
   8,820.25/12,171.81 = 5,043.77/x
3. Step 3: Cross multiply
   8,820.25x = 12,171.81 × 5,043.77
4. Step 4: Simplify right side
   8,820.25x = 61,391,786.34
5. Step 5: Solve for x
   x = 61,391,786.34/8,820.25
6. Step 6: Final answer
   x = 6,960.32