Finding the Fourth Proportional to 12,867.04, 19,290.47 and 5,081.68

Step by Step Solution

1. Step 1: Write the proportion equation
   12,867.04 : 19,290.47 = 5,081.68 : x
2. Step 2: Convert to fraction form
   12,867.04/19,290.47 = 5,081.68/x
3. Step 3: Cross multiply
   12,867.04x = 19,290.47 × 5,081.68
4. Step 4: Simplify right side
   12,867.04x = 98,027,995.59
5. Step 5: Solve for x
   x = 98,027,995.59/12,867.04
6. Step 6: Final answer
   x = 7,618.54