Finding the Fourth Proportional to 12,910.84, 19,358.46 and 5,793.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,910.84 : 19,358.46 = 5,793.78 : x
2. Step 2: Convert to fraction form
   12,910.84/19,358.46 = 5,793.78/x
3. Step 3: Cross multiply
   12,910.84x = 19,358.46 × 5,793.78
4. Step 4: Simplify right side
   12,910.84x = 112,158,658.38
5. Step 5: Solve for x
   x = 112,158,658.38/12,910.84
6. Step 6: Final answer
   x = 8,687.17