Finding the Fourth Proportional to 22,518, 31,074.84 and 12,583.92

Step by Step Solution

1. Step 1: Write the proportion equation
   22,518 : 31,074.84 = 12,583.92 : x
2. Step 2: Convert to fraction form
   22,518/31,074.84 = 12,583.92/x
3. Step 3: Cross multiply
   22,518x = 31,074.84 × 12,583.92
4. Step 4: Simplify right side
   22,518x = 391,043,300.57
5. Step 5: Solve for x
   x = 391,043,300.57/22,518
6. Step 6: Final answer
   x = 17,365.81