Finding the Fourth Proportional to 31,114.98, 42,924.78 and 19,173.96

Step by Step Solution

1. Step 1: Write the proportion equation
   31,114.98 : 42,924.78 = 19,173.96 : x
2. Step 2: Convert to fraction form
   31,114.98/42,924.78 = 19,173.96/x
3. Step 3: Cross multiply
   31,114.98x = 42,924.78 × 19,173.96
4. Step 4: Simplify right side
   31,114.98x = 823,038,014.73
5. Step 5: Solve for x
   x = 823,038,014.73/31,114.98
6. Step 6: Final answer
   x = 26,451.50