Finding the Fourth Proportional to 10,905.54, 16,355.37 and 4,662.45

Step by Step Solution

1. Step 1: Write the proportion equation
   10,905.54 : 16,355.37 = 4,662.45 : x
2. Step 2: Convert to fraction form
   10,905.54/16,355.37 = 4,662.45/x
3. Step 3: Cross multiply
   10,905.54x = 16,355.37 × 4,662.45
4. Step 4: Simplify right side
   10,905.54x = 76,256,094.86
5. Step 5: Solve for x
   x = 76,256,094.86/10,905.54
6. Step 6: Final answer
   x = 6,992.42