Finding the Fourth Proportional to 10,907.60, 16,359.42 and 3,114.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,907.60 : 16,359.42 = 3,114.50 : x
2. Step 2: Convert to fraction form
   10,907.60/16,359.42 = 3,114.50/x
3. Step 3: Cross multiply
   10,907.60x = 16,359.42 × 3,114.50
4. Step 4: Simplify right side
   10,907.60x = 50,951,413.59
5. Step 5: Solve for x
   x = 50,951,413.59/10,907.60
6. Step 6: Final answer
   x = 4,671.18