Finding the Fourth Proportional to 47,019.62, 64,905.14 and 31,919.03

Step by Step Solution

1. Step 1: Write the proportion equation
   47,019.62 : 64,905.14 = 31,919.03 : x
2. Step 2: Convert to fraction form
   47,019.62/64,905.14 = 31,919.03/x
3. Step 3: Cross multiply
   47,019.62x = 64,905.14 × 31,919.03
4. Step 4: Simplify right side
   47,019.62x = 2,071,708,626.69
5. Step 5: Solve for x
   x = 2,071,708,626.69/47,019.62
6. Step 6: Final answer
   x = 44,060.52