Finding the Fourth Proportional to 31,010, 42,793.80 and 16,862.82

Step by Step Solution

1. Step 1: Write the proportion equation
   31,010 : 42,793.80 = 16,862.82 : x
2. Step 2: Convert to fraction form
   31,010/42,793.80 = 16,862.82/x
3. Step 3: Cross multiply
   31,010x = 42,793.80 × 16,862.82
4. Step 4: Simplify right side
   31,010x = 721,624,146.52
5. Step 5: Solve for x
   x = 721,624,146.52/31,010
6. Step 6: Final answer
   x = 23,270.69