Finding the Fourth Proportional to 10,994.71, 15,172.66 and 5,959.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,994.71 : 15,172.66 = 5,959.06 : x
2. Step 2: Convert to fraction form
   10,994.71/15,172.66 = 5,959.06/x
3. Step 3: Cross multiply
   10,994.71x = 15,172.66 × 5,959.06
4. Step 4: Simplify right side
   10,994.71x = 90,414,791.30
5. Step 5: Solve for x
   x = 90,414,791.30/10,994.71
6. Step 6: Final answer
   x = 8,223.48