Finding the Fourth Proportional to 12,862.73, 19,281.78 and 4,091.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,862.73 : 19,281.78 = 4,091.94 : x
2. Step 2: Convert to fraction form
   12,862.73/19,281.78 = 4,091.94/x
3. Step 3: Cross multiply
   12,862.73x = 19,281.78 × 4,091.94
4. Step 4: Simplify right side
   12,862.73x = 78,899,886.85
5. Step 5: Solve for x
   x = 78,899,886.85/12,862.73
6. Step 6: Final answer
   x = 6,133.99