Finding the Fourth Proportional to 12,829.50, 19,248.84 and 5,811.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,829.50 : 19,248.84 = 5,811.12 : x
2. Step 2: Convert to fraction form
   12,829.50/19,248.84 = 5,811.12/x
3. Step 3: Cross multiply
   12,829.50x = 19,248.84 × 5,811.12
4. Step 4: Simplify right side
   12,829.50x = 111,857,319.10
5. Step 5: Solve for x
   x = 111,857,319.10/12,829.50
6. Step 6: Final answer
   x = 8,718.76