Finding the Fourth Proportional to 12,341.72, 18,517.98 and 7,967.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,341.72 : 18,517.98 = 7,967.72 : x
2. Step 2: Convert to fraction form
   12,341.72/18,517.98 = 7,967.72/x
3. Step 3: Cross multiply
   12,341.72x = 18,517.98 × 7,967.72
4. Step 4: Simplify right side
   12,341.72x = 147,546,079.61
5. Step 5: Solve for x
   x = 147,546,079.61/12,341.72
6. Step 6: Final answer
   x = 11,955.07