Finding the Fourth Proportional to 22,518.96, 31,075.56 and 12,309.59

Step by Step Solution

1. Step 1: Write the proportion equation
   22,518.96 : 31,075.56 = 12,309.59 : x
2. Step 2: Convert to fraction form
   22,518.96/31,075.56 = 12,309.59/x
3. Step 3: Cross multiply
   22,518.96x = 31,075.56 × 12,309.59
4. Step 4: Simplify right side
   22,518.96x = 382,527,247.24
5. Step 5: Solve for x
   x = 382,527,247.24/22,518.96
6. Step 6: Final answer
   x = 16,986.90