Finding the Fourth Proportional to 31,156.52, 42,993.99 and 17,009.33

Step by Step Solution

1. Step 1: Write the proportion equation
   31,156.52 : 42,993.99 = 17,009.33 : x
2. Step 2: Convert to fraction form
   31,156.52/42,993.99 = 17,009.33/x
3. Step 3: Cross multiply
   31,156.52x = 42,993.99 × 17,009.33
4. Step 4: Simplify right side
   31,156.52x = 731,298,748.96
5. Step 5: Solve for x
   x = 731,298,748.96/31,156.52
6. Step 6: Final answer
   x = 23,471.78