Finding the Fourth Proportional to 31,092.01, 42,913.90 and 19,759.30

Step by Step Solution

1. Step 1: Write the proportion equation
   31,092.01 : 42,913.90 = 19,759.30 : x
2. Step 2: Convert to fraction form
   31,092.01/42,913.90 = 19,759.30/x
3. Step 3: Cross multiply
   31,092.01x = 42,913.90 × 19,759.30
4. Step 4: Simplify right side
   31,092.01x = 847,948,541.68
5. Step 5: Solve for x
   x = 847,948,541.68/31,092.01
6. Step 6: Final answer
   x = 27,272.23