Finding the Fourth Proportional to 10,990.62, 15,175.74 and 10,150.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,990.62 : 15,175.74 = 10,150.98 : x
2. Step 2: Convert to fraction form
   10,990.62/15,175.74 = 10,150.98/x
3. Step 3: Cross multiply
   10,990.62x = 15,175.74 × 10,150.98
4. Step 4: Simplify right side
   10,990.62x = 154,048,633.23
5. Step 5: Solve for x
   x = 154,048,633.23/10,990.62
6. Step 6: Final answer
   x = 14,016.37