Finding the Fourth Proportional to 8,123.02, 12,189.39 and 7,462.06

Step by Step Solution

1. Step 1: Write the proportion equation
   8,123.02 : 12,189.39 = 7,462.06 : x
2. Step 2: Convert to fraction form
   8,123.02/12,189.39 = 7,462.06/x
3. Step 3: Cross multiply
   8,123.02x = 12,189.39 × 7,462.06
4. Step 4: Simplify right side
   8,123.02x = 90,957,901.09
5. Step 5: Solve for x
   x = 90,957,901.09/8,123.02
6. Step 6: Final answer
   x = 11,197.55