Finding the Fourth Proportional to 22,117.32, 30,522.29 and 12,556.96

Step by Step Solution

1. Step 1: Write the proportion equation
   22,117.32 : 30,522.29 = 12,556.96 : x
2. Step 2: Convert to fraction form
   22,117.32/30,522.29 = 12,556.96/x
3. Step 3: Cross multiply
   22,117.32x = 30,522.29 × 12,556.96
4. Step 4: Simplify right side
   22,117.32x = 383,267,035.55
5. Step 5: Solve for x
   x = 383,267,035.55/22,117.32
6. Step 6: Final answer
   x = 17,328.82