Finding the Fourth Proportional to 12,847.89, 19,260.15 and 4,945.35

Step by Step Solution

1. Step 1: Write the proportion equation
   12,847.89 : 19,260.15 = 4,945.35 : x
2. Step 2: Convert to fraction form
   12,847.89/19,260.15 = 4,945.35/x
3. Step 3: Cross multiply
   12,847.89x = 19,260.15 × 4,945.35
4. Step 4: Simplify right side
   12,847.89x = 95,248,182.80
5. Step 5: Solve for x
   x = 95,248,182.80/12,847.89
6. Step 6: Final answer
   x = 7,413.53