Finding the Fourth Proportional to 31,094.70, 42,910.70 and 17,665.97

Step by Step Solution

1. Step 1: Write the proportion equation
   31,094.70 : 42,910.70 = 17,665.97 : x
2. Step 2: Convert to fraction form
   31,094.70/42,910.70 = 17,665.97/x
3. Step 3: Cross multiply
   31,094.70x = 42,910.70 × 17,665.97
4. Step 4: Simplify right side
   31,094.70x = 758,059,157.83
5. Step 5: Solve for x
   x = 758,059,157.83/31,094.70
6. Step 6: Final answer
   x = 24,379.05