Finding the Fourth Proportional to 8,809.22, 12,156.78 and 4,830.38

Step by Step Solution

1. Step 1: Write the proportion equation
   8,809.22 : 12,156.78 = 4,830.38 : x
2. Step 2: Convert to fraction form
   8,809.22/12,156.78 = 4,830.38/x
3. Step 3: Cross multiply
   8,809.22x = 12,156.78 × 4,830.38
4. Step 4: Simplify right side
   8,809.22x = 58,721,866.98
5. Step 5: Solve for x
   x = 58,721,866.98/8,809.22
6. Step 6: Final answer
   x = 6,665.96