Finding the Fourth Proportional to 22,530.20, 31,091.67 and 12,594.20

Step by Step Solution

1. Step 1: Write the proportion equation
   22,530.20 : 31,091.67 = 12,594.20 : x
2. Step 2: Convert to fraction form
   22,530.20/31,091.67 = 12,594.20/x
3. Step 3: Cross multiply
   22,530.20x = 31,091.67 × 12,594.20
4. Step 4: Simplify right side
   22,530.20x = 391,574,554.86
5. Step 5: Solve for x
   x = 391,574,554.86/22,530.20
6. Step 6: Final answer
   x = 17,379.99