Finding the Fourth Proportional to 22,971.24, 31,700.70 and 12,762

Step by Step Solution

1. Step 1: Write the proportion equation
   22,971.24 : 31,700.70 = 12,762 : x
2. Step 2: Convert to fraction form
   22,971.24/31,700.70 = 12,762/x
3. Step 3: Cross multiply
   22,971.24x = 31,700.70 × 12,762
4. Step 4: Simplify right side
   22,971.24x = 404,564,333.40
5. Step 5: Solve for x
   x = 404,564,333.40/22,971.24
6. Step 6: Final answer
   x = 17,611.78