Finding the Fourth Proportional to 22,256.96, 30,714.54 and 12,825.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,256.96 : 30,714.54 = 12,825.50 : x
2. Step 2: Convert to fraction form
   22,256.96/30,714.54 = 12,825.50/x
3. Step 3: Cross multiply
   22,256.96x = 30,714.54 × 12,825.50
4. Step 4: Simplify right side
   22,256.96x = 393,929,332.77
5. Step 5: Solve for x
   x = 393,929,332.77/22,256.96
6. Step 6: Final answer
   x = 17,699.15