Finding the Fourth Proportional to 31,156.92, 42,996.42 and 17,009.73

Step by Step Solution

1. Step 1: Write the proportion equation
   31,156.92 : 42,996.42 = 17,009.73 : x
2. Step 2: Convert to fraction form
   31,156.92/42,996.42 = 17,009.73/x
3. Step 3: Cross multiply
   31,156.92x = 42,996.42 × 17,009.73
4. Step 4: Simplify right side
   31,156.92x = 731,357,495.17
5. Step 5: Solve for x
   x = 731,357,495.17/31,156.92
6. Step 6: Final answer
   x = 23,473.36