Finding the Fourth Proportional to 16,385.89, 24,579.37 and 4,539.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,385.89 : 24,579.37 = 4,539.78 : x
2. Step 2: Convert to fraction form
   16,385.89/24,579.37 = 4,539.78/x
3. Step 3: Cross multiply
   16,385.89x = 24,579.37 × 4,539.78
4. Step 4: Simplify right side
   16,385.89x = 111,584,916.22
5. Step 5: Solve for x
   x = 111,584,916.22/16,385.89
6. Step 6: Final answer
   x = 6,809.82