Finding the Fourth Proportional to 31,155.59, 42,995.61 and 17,009.34

Step by Step Solution

1. Step 1: Write the proportion equation
   31,155.59 : 42,995.61 = 17,009.34 : x
2. Step 2: Convert to fraction form
   31,155.59/42,995.61 = 17,009.34/x
3. Step 3: Cross multiply
   31,155.59x = 42,995.61 × 17,009.34
4. Step 4: Simplify right side
   31,155.59x = 731,326,949.00
5. Step 5: Solve for x
   x = 731,326,949.00/31,155.59
6. Step 6: Final answer
   x = 23,473.38