Finding the Fourth Proportional to 31,154.42, 42,992.43 and 17,007.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,154.42 : 42,992.43 = 17,007.50 : x
2. Step 2: Convert to fraction form
   31,154.42/42,992.43 = 17,007.50/x
3. Step 3: Cross multiply
   31,154.42x = 42,992.43 × 17,007.50
4. Step 4: Simplify right side
   31,154.42x = 731,193,753.23
5. Step 5: Solve for x
   x = 731,193,753.23/31,154.42
6. Step 6: Final answer
   x = 23,469.98