Finding the Fourth Proportional to 22,636, 31,240.08 and 12,700

Step by Step Solution

1. Step 1: Write the proportion equation
   22,636 : 31,240.08 = 12,700 : x
2. Step 2: Convert to fraction form
   22,636/31,240.08 = 12,700/x
3. Step 3: Cross multiply
   22,636x = 31,240.08 × 12,700
4. Step 4: Simplify right side
   22,636x = 396,749,016
5. Step 5: Solve for x
   x = 396,749,016/22,636
6. Step 6: Final answer
   x = 17,527.35