Finding the Fourth Proportional to 30,892.38, 42,631.47 and 16,745.10

Step by Step Solution

1. Step 1: Write the proportion equation
   30,892.38 : 42,631.47 = 16,745.10 : x
2. Step 2: Convert to fraction form
   30,892.38/42,631.47 = 16,745.10/x
3. Step 3: Cross multiply
   30,892.38x = 42,631.47 × 16,745.10
4. Step 4: Simplify right side
   30,892.38x = 713,868,228.30
5. Step 5: Solve for x
   x = 713,868,228.30/30,892.38
6. Step 6: Final answer
   x = 23,108.23