Finding the Fourth Proportional to 12,468.89, 18,693.43 and 7,197.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,468.89 : 18,693.43 = 7,197.94 : x
2. Step 2: Convert to fraction form
   12,468.89/18,693.43 = 7,197.94/x
3. Step 3: Cross multiply
   12,468.89x = 18,693.43 × 7,197.94
4. Step 4: Simplify right side
   12,468.89x = 134,554,180.82
5. Step 5: Solve for x
   x = 134,554,180.82/12,468.89
6. Step 6: Final answer
   x = 10,791.19