Finding the Fourth Proportional to 22,469.76, 30,980.34 and 17,156.16

Step by Step Solution

1. Step 1: Write the proportion equation
   22,469.76 : 30,980.34 = 17,156.16 : x
2. Step 2: Convert to fraction form
   22,469.76/30,980.34 = 17,156.16/x
3. Step 3: Cross multiply
   22,469.76x = 30,980.34 × 17,156.16
4. Step 4: Simplify right side
   22,469.76x = 531,503,669.89
5. Step 5: Solve for x
   x = 531,503,669.89/22,469.76
6. Step 6: Final answer
   x = 23,654.18