Finding the Fourth Proportional to 31,057.44, 42,858.72 and 16,910.04

Step by Step Solution

1. Step 1: Write the proportion equation
   31,057.44 : 42,858.72 = 16,910.04 : x
2. Step 2: Convert to fraction form
   31,057.44/42,858.72 = 16,910.04/x
3. Step 3: Cross multiply
   31,057.44x = 42,858.72 × 16,910.04
4. Step 4: Simplify right side
   31,057.44x = 724,742,669.55
5. Step 5: Solve for x
   x = 724,742,669.55/31,057.44
6. Step 6: Final answer
   x = 23,335.56