Finding the Fourth Proportional to 31,945.94, 47,882.59 and 19,438.43

Step by Step Solution

1. Step 1: Write the proportion equation
   31,945.94 : 47,882.59 = 19,438.43 : x
2. Step 2: Convert to fraction form
   31,945.94/47,882.59 = 19,438.43/x
3. Step 3: Cross multiply
   31,945.94x = 47,882.59 × 19,438.43
4. Step 4: Simplify right side
   31,945.94x = 930,762,464.61
5. Step 5: Solve for x
   x = 930,762,464.61/31,945.94
6. Step 6: Final answer
   x = 29,135.54