Finding the Fourth Proportional to 31,154.15, 42,992.96 and 17,007.36

Step by Step Solution

1. Step 1: Write the proportion equation
   31,154.15 : 42,992.96 = 17,007.36 : x
2. Step 2: Convert to fraction form
   31,154.15/42,992.96 = 17,007.36/x
3. Step 3: Cross multiply
   31,154.15x = 42,992.96 × 17,007.36
4. Step 4: Simplify right side
   31,154.15x = 731,196,663.15
5. Step 5: Solve for x
   x = 731,196,663.15/31,154.15
6. Step 6: Final answer
   x = 23,470.29