Finding the Fourth Proportional to 22,662.30, 31,270.50 and 12,590.58

Step by Step Solution

1. Step 1: Write the proportion equation
   22,662.30 : 31,270.50 = 12,590.58 : x
2. Step 2: Convert to fraction form
   22,662.30/31,270.50 = 12,590.58/x
3. Step 3: Cross multiply
   22,662.30x = 31,270.50 × 12,590.58
4. Step 4: Simplify right side
   22,662.30x = 393,713,731.89
5. Step 5: Solve for x
   x = 393,713,731.89/22,662.30
6. Step 6: Final answer
   x = 17,373.07