Finding the Fourth Proportional to 12,298.38, 18,447.56 and 11,700.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,298.38 : 18,447.56 = 11,700.82 : x
2. Step 2: Convert to fraction form
   12,298.38/18,447.56 = 11,700.82/x
3. Step 3: Cross multiply
   12,298.38x = 18,447.56 × 11,700.82
4. Step 4: Simplify right side
   12,298.38x = 215,851,667.48
5. Step 5: Solve for x
   x = 215,851,667.48/12,298.38
6. Step 6: Final answer
   x = 17,551.23