Finding the Fourth Proportional to 22,516.97, 31,077.27 and 13,091

Step by Step Solution

1. Step 1: Write the proportion equation
   22,516.97 : 31,077.27 = 13,091 : x
2. Step 2: Convert to fraction form
   22,516.97/31,077.27 = 13,091/x
3. Step 3: Cross multiply
   22,516.97x = 31,077.27 × 13,091
4. Step 4: Simplify right side
   22,516.97x = 406,832,541.57
5. Step 5: Solve for x
   x = 406,832,541.57/22,516.97
6. Step 6: Final answer
   x = 18,067.82