Finding the Fourth Proportional to 12,004.84, 18,020.52 and 7,078.04

Step by Step Solution

1. Step 1: Write the proportion equation
   12,004.84 : 18,020.52 = 7,078.04 : x
2. Step 2: Convert to fraction form
   12,004.84/18,020.52 = 7,078.04/x
3. Step 3: Cross multiply
   12,004.84x = 18,020.52 × 7,078.04
4. Step 4: Simplify right side
   12,004.84x = 127,549,961.38
5. Step 5: Solve for x
   x = 127,549,961.38/12,004.84
6. Step 6: Final answer
   x = 10,624.88