Finding the Fourth Proportional to 22,526.25, 31,086.24 and 12,590.25

Step by Step Solution

1. Step 1: Write the proportion equation
   22,526.25 : 31,086.24 = 12,590.25 : x
2. Step 2: Convert to fraction form
   22,526.25/31,086.24 = 12,590.25/x
3. Step 3: Cross multiply
   22,526.25x = 31,086.24 × 12,590.25
4. Step 4: Simplify right side
   22,526.25x = 391,383,533.16
5. Step 5: Solve for x
   x = 391,383,533.16/22,526.25
6. Step 6: Final answer
   x = 17,374.55