Finding the Fourth Proportional to 11,516.82, 17,274.24 and 7,012.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,516.82 : 17,274.24 = 7,012.72 : x
2. Step 2: Convert to fraction form
   11,516.82/17,274.24 = 7,012.72/x
3. Step 3: Cross multiply
   11,516.82x = 17,274.24 × 7,012.72
4. Step 4: Simplify right side
   11,516.82x = 121,139,365.15
5. Step 5: Solve for x
   x = 121,139,365.15/11,516.82
6. Step 6: Final answer
   x = 10,518.47