Finding the Fourth Proportional to 10,994.74, 15,172.76 and 5,958.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,994.74 : 15,172.76 = 5,958.96 : x
2. Step 2: Convert to fraction form
   10,994.74/15,172.76 = 5,958.96/x
3. Step 3: Cross multiply
   10,994.74x = 15,172.76 × 5,958.96
4. Step 4: Simplify right side
   10,994.74x = 90,413,869.93
5. Step 5: Solve for x
   x = 90,413,869.93/10,994.74
6. Step 6: Final answer
   x = 8,223.37