Finding the Fourth Proportional to 30,892.47, 42,631.83 and 16,745.31

Step by Step Solution

1. Step 1: Write the proportion equation
   30,892.47 : 42,631.83 = 16,745.31 : x
2. Step 2: Convert to fraction form
   30,892.47/42,631.83 = 16,745.31/x
3. Step 3: Cross multiply
   30,892.47x = 42,631.83 × 16,745.31
4. Step 4: Simplify right side
   30,892.47x = 713,883,209.22
5. Step 5: Solve for x
   x = 713,883,209.22/30,892.47
6. Step 6: Final answer
   x = 23,108.65