Finding the Fourth Proportional to 31,045.80, 42,825.02 and 22,538

Step by Step Solution

1. Step 1: Write the proportion equation
   31,045.80 : 42,825.02 = 22,538 : x
2. Step 2: Convert to fraction form
   31,045.80/42,825.02 = 22,538/x
3. Step 3: Cross multiply
   31,045.80x = 42,825.02 × 22,538
4. Step 4: Simplify right side
   31,045.80x = 965,190,300.76
5. Step 5: Solve for x
   x = 965,190,300.76/31,045.80
6. Step 6: Final answer
   x = 31,089.24