Finding the Fourth Proportional to 8,123.77, 12,190.51 and 7,462.81

Step by Step Solution

1. Step 1: Write the proportion equation
   8,123.77 : 12,190.51 = 7,462.81 : x
2. Step 2: Convert to fraction form
   8,123.77/12,190.51 = 7,462.81/x
3. Step 3: Cross multiply
   8,123.77x = 12,190.51 × 7,462.81
4. Step 4: Simplify right side
   8,123.77x = 90,975,459.93
5. Step 5: Solve for x
   x = 90,975,459.93/8,123.77
6. Step 6: Final answer
   x = 11,198.67