Finding the Fourth Proportional to 8,809.37, 12,156.83 and 4,830.47

Step by Step Solution

1. Step 1: Write the proportion equation
   8,809.37 : 12,156.83 = 4,830.47 : x
2. Step 2: Convert to fraction form
   8,809.37/12,156.83 = 4,830.47/x
3. Step 3: Cross multiply
   8,809.37x = 12,156.83 × 4,830.47
4. Step 4: Simplify right side
   8,809.37x = 58,723,141.83
5. Step 5: Solve for x
   x = 58,723,141.83/8,809.37
6. Step 6: Final answer
   x = 6,665.99