Finding the Fourth Proportional to 11,834.63, 16,336.98 and 7,859.15

Step by Step Solution

1. Step 1: Write the proportion equation
   11,834.63 : 16,336.98 = 7,859.15 : x
2. Step 2: Convert to fraction form
   11,834.63/16,336.98 = 7,859.15/x
3. Step 3: Cross multiply
   11,834.63x = 16,336.98 × 7,859.15
4. Step 4: Simplify right side
   11,834.63x = 128,394,776.37
5. Step 5: Solve for x
   x = 128,394,776.37/11,834.63
6. Step 6: Final answer
   x = 10,849.07