Finding the Fourth Proportional to 31,200.92, 46,748.58 and 18,863

Step by Step Solution

1. Step 1: Write the proportion equation
   31,200.92 : 46,748.58 = 18,863 : x
2. Step 2: Convert to fraction form
   31,200.92/46,748.58 = 18,863/x
3. Step 3: Cross multiply
   31,200.92x = 46,748.58 × 18,863
4. Step 4: Simplify right side
   31,200.92x = 881,818,464.54
5. Step 5: Solve for x
   x = 881,818,464.54/31,200.92
6. Step 6: Final answer
   x = 28,262.58