Finding the Fourth Proportional to 10,994.21, 15,171.98 and 5,958.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,994.21 : 15,171.98 = 5,958.56 : x
2. Step 2: Convert to fraction form
   10,994.21/15,171.98 = 5,958.56/x
3. Step 3: Cross multiply
   10,994.21x = 15,171.98 × 5,958.56
4. Step 4: Simplify right side
   10,994.21x = 90,403,047.50
5. Step 5: Solve for x
   x = 90,403,047.50/10,994.21
6. Step 6: Final answer
   x = 8,222.79