Finding the Fourth Proportional to 12,421.05, 18,633.42 and 4,101.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,421.05 : 18,633.42 = 4,101.94 : x
2. Step 2: Convert to fraction form
   12,421.05/18,633.42 = 4,101.94/x
3. Step 3: Cross multiply
   12,421.05x = 18,633.42 × 4,101.94
4. Step 4: Simplify right side
   12,421.05x = 76,433,150.33
5. Step 5: Solve for x
   x = 76,433,150.33/12,421.05
6. Step 6: Final answer
   x = 6,153.52