Finding the Fourth Proportional to 47,298.72, 70,972.16 and 31,514.56

Step by Step Solution

1. Step 1: Write the proportion equation
   47,298.72 : 70,972.16 = 31,514.56 : x
2. Step 2: Convert to fraction form
   47,298.72/70,972.16 = 31,514.56/x
3. Step 3: Cross multiply
   47,298.72x = 70,972.16 × 31,514.56
4. Step 4: Simplify right side
   47,298.72x = 2,236,656,394.65
5. Step 5: Solve for x
   x = 2,236,656,394.65/47,298.72
6. Step 6: Final answer
   x = 47,287.88