Finding the Fourth Proportional to 31,154.82, 42,993.75 and 17,007.63

Step by Step Solution

1. Step 1: Write the proportion equation
   31,154.82 : 42,993.75 = 17,007.63 : x
2. Step 2: Convert to fraction form
   31,154.82/42,993.75 = 17,007.63/x
3. Step 3: Cross multiply
   31,154.82x = 42,993.75 × 17,007.63
4. Step 4: Simplify right side
   31,154.82x = 731,221,792.31
5. Step 5: Solve for x
   x = 731,221,792.31/31,154.82
6. Step 6: Final answer
   x = 23,470.58