Finding the Fourth Proportional to 31,214.56, 43,076.78 and 17,068.72

Step by Step Solution

1. Step 1: Write the proportion equation
   31,214.56 : 43,076.78 = 17,068.72 : x
2. Step 2: Convert to fraction form
   31,214.56/43,076.78 = 17,068.72/x
3. Step 3: Cross multiply
   31,214.56x = 43,076.78 × 17,068.72
4. Step 4: Simplify right side
   31,214.56x = 735,265,496.32
5. Step 5: Solve for x
   x = 735,265,496.32/31,214.56
6. Step 6: Final answer
   x = 23,555.21