Finding the Fourth Proportional to 22,506.80, 31,059.25 and 12,435.19

Step by Step Solution

1. Step 1: Write the proportion equation
   22,506.80 : 31,059.25 = 12,435.19 : x
2. Step 2: Convert to fraction form
   22,506.80/31,059.25 = 12,435.19/x
3. Step 3: Cross multiply
   22,506.80x = 31,059.25 × 12,435.19
4. Step 4: Simplify right side
   22,506.80x = 386,227,566.27
5. Step 5: Solve for x
   x = 386,227,566.27/22,506.80
6. Step 6: Final answer
   x = 17,160.49