Finding the Fourth Proportional to 12,080.94, 18,123.90 and 4,685.37

Step by Step Solution

1. Step 1: Write the proportion equation
   12,080.94 : 18,123.90 = 4,685.37 : x
2. Step 2: Convert to fraction form
   12,080.94/18,123.90 = 4,685.37/x
3. Step 3: Cross multiply
   12,080.94x = 18,123.90 × 4,685.37
4. Step 4: Simplify right side
   12,080.94x = 84,917,177.34
5. Step 5: Solve for x
   x = 84,917,177.34/12,080.94
6. Step 6: Final answer
   x = 7,029.02