Finding the Fourth Proportional to 31,156.25, 42,983.33 and 19,198.76

Step by Step Solution

1. Step 1: Write the proportion equation
   31,156.25 : 42,983.33 = 19,198.76 : x
2. Step 2: Convert to fraction form
   31,156.25/42,983.33 = 19,198.76/x
3. Step 3: Cross multiply
   31,156.25x = 42,983.33 × 19,198.76
4. Step 4: Simplify right side
   31,156.25x = 825,226,325.76
5. Step 5: Solve for x
   x = 825,226,325.76/31,156.25
6. Step 6: Final answer
   x = 26,486.71