Finding the Fourth Proportional to 31,427.40, 47,156.46 and 14,789.10

Step by Step Solution

1. Step 1: Write the proportion equation
   31,427.40 : 47,156.46 = 14,789.10 : x
2. Step 2: Convert to fraction form
   31,427.40/47,156.46 = 14,789.10/x
3. Step 3: Cross multiply
   31,427.40x = 47,156.46 × 14,789.10
4. Step 4: Simplify right side
   31,427.40x = 697,401,602.59
5. Step 5: Solve for x
   x = 697,401,602.59/31,427.40
6. Step 6: Final answer
   x = 22,190.88