Finding the Fourth Proportional to 22,990.50, 31,726.92 and 13,054.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,990.50 : 31,726.92 = 13,054.50 : x
2. Step 2: Convert to fraction form
   22,990.50/31,726.92 = 13,054.50/x
3. Step 3: Cross multiply
   22,990.50x = 31,726.92 × 13,054.50
4. Step 4: Simplify right side
   22,990.50x = 414,179,077.14
5. Step 5: Solve for x
   x = 414,179,077.14/22,990.50
6. Step 6: Final answer
   x = 18,015.23