Finding the Fourth Proportional to 12,078.01, 18,123.35 and 8,773.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,078.01 : 18,123.35 = 8,773.56 : x
2. Step 2: Convert to fraction form
   12,078.01/18,123.35 = 8,773.56/x
3. Step 3: Cross multiply
   12,078.01x = 18,123.35 × 8,773.56
4. Step 4: Simplify right side
   12,078.01x = 159,006,304.11
5. Step 5: Solve for x
   x = 159,006,304.11/12,078.01
6. Step 6: Final answer
   x = 13,164.94