Finding the Fourth Proportional to 12,343.39, 18,514.67 and 4,945.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,343.39 : 18,514.67 = 4,945.86 : x
2. Step 2: Convert to fraction form
   12,343.39/18,514.67 = 4,945.86/x
3. Step 3: Cross multiply
   12,343.39x = 18,514.67 × 4,945.86
4. Step 4: Simplify right side
   12,343.39x = 91,570,941.04
5. Step 5: Solve for x
   x = 91,570,941.04/12,343.39
6. Step 6: Final answer
   x = 7,418.62