Finding the Fourth Proportional to 31,012.98, 42,796.94 and 18,263.24

Step by Step Solution

1. Step 1: Write the proportion equation
   31,012.98 : 42,796.94 = 18,263.24 : x
2. Step 2: Convert to fraction form
   31,012.98/42,796.94 = 18,263.24/x
3. Step 3: Cross multiply
   31,012.98x = 42,796.94 × 18,263.24
4. Step 4: Simplify right side
   31,012.98x = 781,610,786.49
5. Step 5: Solve for x
   x = 781,610,786.49/31,012.98
6. Step 6: Final answer
   x = 25,202.70