Finding the Fourth Proportional to 23,018.54, 31,776.28 and 17,355.58

Step by Step Solution

1. Step 1: Write the proportion equation
   23,018.54 : 31,776.28 = 17,355.58 : x
2. Step 2: Convert to fraction form
   23,018.54/31,776.28 = 17,355.58/x
3. Step 3: Cross multiply
   23,018.54x = 31,776.28 × 17,355.58
4. Step 4: Simplify right side
   23,018.54x = 551,495,769.64
5. Step 5: Solve for x
   x = 551,495,769.64/23,018.54
6. Step 6: Final answer
   x = 23,958.76