Finding the Fourth Proportional to 12,730.01, 19,088.82 and 5,709.74

Step by Step Solution

1. Step 1: Write the proportion equation
   12,730.01 : 19,088.82 = 5,709.74 : x
2. Step 2: Convert to fraction form
   12,730.01/19,088.82 = 5,709.74/x
3. Step 3: Cross multiply
   12,730.01x = 19,088.82 × 5,709.74
4. Step 4: Simplify right side
   12,730.01x = 108,992,103.66
5. Step 5: Solve for x
   x = 108,992,103.66/12,730.01
6. Step 6: Final answer
   x = 8,561.83