Finding the Fourth Proportional to 12,084.94, 18,123.72 and 4,293.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,084.94 : 18,123.72 = 4,293.28 : x
2. Step 2: Convert to fraction form
   12,084.94/18,123.72 = 4,293.28/x
3. Step 3: Cross multiply
   12,084.94x = 18,123.72 × 4,293.28
4. Step 4: Simplify right side
   12,084.94x = 77,810,204.60
5. Step 5: Solve for x
   x = 77,810,204.60/12,084.94
6. Step 6: Final answer
   x = 6,438.61