Finding the Fourth Proportional to 22,526, 31,085.16 and 12,453.68

Step by Step Solution

1. Step 1: Write the proportion equation
   22,526 : 31,085.16 = 12,453.68 : x
2. Step 2: Convert to fraction form
   22,526/31,085.16 = 12,453.68/x
3. Step 3: Cross multiply
   22,526x = 31,085.16 × 12,453.68
4. Step 4: Simplify right side
   22,526x = 387,124,635.39
5. Step 5: Solve for x
   x = 387,124,635.39/22,526
6. Step 6: Final answer
   x = 17,185.68