Finding the Fourth Proportional to 8,123.58, 12,190.23 and 7,462.62

Step by Step Solution

1. Step 1: Write the proportion equation
   8,123.58 : 12,190.23 = 7,462.62 : x
2. Step 2: Convert to fraction form
   8,123.58/12,190.23 = 7,462.62/x
3. Step 3: Cross multiply
   8,123.58x = 12,190.23 × 7,462.62
4. Step 4: Simplify right side
   8,123.58x = 90,971,054.20
5. Step 5: Solve for x
   x = 90,971,054.20/8,123.58
6. Step 6: Final answer
   x = 11,198.39