Finding the Fourth Proportional to 31,519.87, 47,294.82 and 19,670.42

Step by Step Solution

1. Step 1: Write the proportion equation
   31,519.87 : 47,294.82 = 19,670.42 : x
2. Step 2: Convert to fraction form
   31,519.87/47,294.82 = 19,670.42/x
3. Step 3: Cross multiply
   31,519.87x = 47,294.82 × 19,670.42
4. Step 4: Simplify right side
   31,519.87x = 930,309,091.46
5. Step 5: Solve for x
   x = 930,309,091.46/31,519.87
6. Step 6: Final answer
   x = 29,515.01