Finding the Fourth Proportional to 47,007.27, 64,872.90 and 31,064.04

Step by Step Solution

1. Step 1: Write the proportion equation
   47,007.27 : 64,872.90 = 31,064.04 : x
2. Step 2: Convert to fraction form
   47,007.27/64,872.90 = 31,064.04/x
3. Step 3: Cross multiply
   47,007.27x = 64,872.90 × 31,064.04
4. Step 4: Simplify right side
   47,007.27x = 2,015,214,360.52
5. Step 5: Solve for x
   x = 2,015,214,360.52/47,007.27
6. Step 6: Final answer
   x = 42,870.27