Finding the Fourth Proportional to 22,613.35, 31,208.34 and 12,545.03

Step by Step Solution

1. Step 1: Write the proportion equation
   22,613.35 : 31,208.34 = 12,545.03 : x
2. Step 2: Convert to fraction form
   22,613.35/31,208.34 = 12,545.03/x
3. Step 3: Cross multiply
   22,613.35x = 31,208.34 × 12,545.03
4. Step 4: Simplify right side
   22,613.35x = 391,509,498.83
5. Step 5: Solve for x
   x = 391,509,498.83/22,613.35
6. Step 6: Final answer
   x = 17,313.20