Finding the Fourth Proportional to 12,340.80, 18,498.24 and 7,967.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,340.80 : 18,498.24 = 7,967.52 : x
2. Step 2: Convert to fraction form
   12,340.80/18,498.24 = 7,967.52/x
3. Step 3: Cross multiply
   12,340.80x = 18,498.24 × 7,967.52
4. Step 4: Simplify right side
   12,340.80x = 147,385,097.16
5. Step 5: Solve for x
   x = 147,385,097.16/12,340.80
6. Step 6: Final answer
   x = 11,942.91