Finding the Fourth Proportional to 12,612.95, 18,922.38 and 3,847.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,612.95 : 18,922.38 = 3,847.86 : x
2. Step 2: Convert to fraction form
   12,612.95/18,922.38 = 3,847.86/x
3. Step 3: Cross multiply
   12,612.95x = 18,922.38 × 3,847.86
4. Step 4: Simplify right side
   12,612.95x = 72,810,676.32
5. Step 5: Solve for x
   x = 72,810,676.32/12,612.95
6. Step 6: Final answer
   x = 5,772.69