Finding the Fourth Proportional to 12,612.12, 18,921.18 and 3,846.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,612.12 : 18,921.18 = 3,846.48 : x
2. Step 2: Convert to fraction form
   12,612.12/18,921.18 = 3,846.48/x
3. Step 3: Cross multiply
   12,612.12x = 18,921.18 × 3,846.48
4. Step 4: Simplify right side
   12,612.12x = 72,779,940.45
5. Step 5: Solve for x
   x = 72,779,940.45/12,612.12
6. Step 6: Final answer
   x = 5,770.63