Finding the Fourth Proportional to 31,055.28, 42,849 and 17,623.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,055.28 : 42,849 = 17,623.50 : x
2. Step 2: Convert to fraction form
   31,055.28/42,849 = 17,623.50/x
3. Step 3: Cross multiply
   31,055.28x = 42,849 × 17,623.50
4. Step 4: Simplify right side
   31,055.28x = 755,149,351.50
5. Step 5: Solve for x
   x = 755,149,351.50/31,055.28
6. Step 6: Final answer
   x = 24,316.30