Finding the Fourth Proportional to 31,092.05, 42,907.17 and 17,664.04

Step by Step Solution

1. Step 1: Write the proportion equation
   31,092.05 : 42,907.17 = 17,664.04 : x
2. Step 2: Convert to fraction form
   31,092.05/42,907.17 = 17,664.04/x
3. Step 3: Cross multiply
   31,092.05x = 42,907.17 × 17,664.04
4. Step 4: Simplify right side
   31,092.05x = 757,913,758.75
5. Step 5: Solve for x
   x = 757,913,758.75/31,092.05
6. Step 6: Final answer
   x = 24,376.45