Finding the Fourth Proportional to 31,020.02, 42,807.65 and 17,591.33

Step by Step Solution

1. Step 1: Write the proportion equation
   31,020.02 : 42,807.65 = 17,591.33 : x
2. Step 2: Convert to fraction form
   31,020.02/42,807.65 = 17,591.33/x
3. Step 3: Cross multiply
   31,020.02x = 42,807.65 × 17,591.33
4. Step 4: Simplify right side
   31,020.02x = 753,043,497.67
5. Step 5: Solve for x
   x = 753,043,497.67/31,020.02
6. Step 6: Final answer
   x = 24,276.05