Finding the Fourth Proportional to 12,407.34, 18,610.74 and 3,642.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,407.34 : 18,610.74 = 3,642.34 : x
2. Step 2: Convert to fraction form
   12,407.34/18,610.74 = 3,642.34/x
3. Step 3: Cross multiply
   12,407.34x = 18,610.74 × 3,642.34
4. Step 4: Simplify right side
   12,407.34x = 67,786,642.73
5. Step 5: Solve for x
   x = 67,786,642.73/12,407.34
6. Step 6: Final answer
   x = 5,463.43