Finding the Fourth Proportional to 31,050.50, 42,860.49 and 18,474.98

Step by Step Solution

1. Step 1: Write the proportion equation
   31,050.50 : 42,860.49 = 18,474.98 : x
2. Step 2: Convert to fraction form
   31,050.50/42,860.49 = 18,474.98/x
3. Step 3: Cross multiply
   31,050.50x = 42,860.49 × 18,474.98
4. Step 4: Simplify right side
   31,050.50x = 791,846,695.54
5. Step 5: Solve for x
   x = 791,846,695.54/31,050.50
6. Step 6: Final answer
   x = 25,501.90