Finding the Fourth Proportional to 47,099.16, 64,972.71 and 30,964.23

Step by Step Solution

1. Step 1: Write the proportion equation
   47,099.16 : 64,972.71 = 30,964.23 : x
2. Step 2: Convert to fraction form
   47,099.16/64,972.71 = 30,964.23/x
3. Step 3: Cross multiply
   47,099.16x = 64,972.71 × 30,964.23
4. Step 4: Simplify right side
   47,099.16x = 2,011,829,936.16
5. Step 5: Solve for x
   x = 2,011,829,936.16/47,099.16
6. Step 6: Final answer
   x = 42,714.77