Finding the Fourth Proportional to 31,177.47, 42,994.17 and 19,238.27

Step by Step Solution

1. Step 1: Write the proportion equation
   31,177.47 : 42,994.17 = 19,238.27 : x
2. Step 2: Convert to fraction form
   31,177.47/42,994.17 = 19,238.27/x
3. Step 3: Cross multiply
   31,177.47x = 42,994.17 × 19,238.27
4. Step 4: Simplify right side
   31,177.47x = 827,133,558.37
5. Step 5: Solve for x
   x = 827,133,558.37/31,177.47
6. Step 6: Final answer
   x = 26,529.85