Finding the Fourth Proportional to 10,485.80, 15,730.32 and 3,822.86

Step by Step Solution

1. Step 1: Write the proportion equation
   10,485.80 : 15,730.32 = 3,822.86 : x
2. Step 2: Convert to fraction form
   10,485.80/15,730.32 = 3,822.86/x
3. Step 3: Cross multiply
   10,485.80x = 15,730.32 × 3,822.86
4. Step 4: Simplify right side
   10,485.80x = 60,134,864.78
5. Step 5: Solve for x
   x = 60,134,864.78/10,485.80
6. Step 6: Final answer
   x = 5,734.88