Finding the Fourth Proportional to 12,293.51, 18,430.67 and 5,718.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,293.51 : 18,430.67 = 5,718.83 : x
2. Step 2: Convert to fraction form
   12,293.51/18,430.67 = 5,718.83/x
3. Step 3: Cross multiply
   12,293.51x = 18,430.67 × 5,718.83
4. Step 4: Simplify right side
   12,293.51x = 105,401,790.66
5. Step 5: Solve for x
   x = 105,401,790.66/12,293.51
6. Step 6: Final answer
   x = 8,573.78