Finding the Fourth Proportional to 31,019.28, 42,816.35 and 17,599.45

Step by Step Solution

1. Step 1: Write the proportion equation
   31,019.28 : 42,816.35 = 17,599.45 : x
2. Step 2: Convert to fraction form
   31,019.28/42,816.35 = 17,599.45/x
3. Step 3: Cross multiply
   31,019.28x = 42,816.35 × 17,599.45
4. Step 4: Simplify right side
   31,019.28x = 753,544,211.01
5. Step 5: Solve for x
   x = 753,544,211.01/31,019.28
6. Step 6: Final answer
   x = 24,292.77