Finding the Fourth Proportional to 47,997.82, 72,011.94 and 19,931.32

Step by Step Solution

1. Step 1: Write the proportion equation
   47,997.82 : 72,011.94 = 19,931.32 : x
2. Step 2: Convert to fraction form
   47,997.82/72,011.94 = 19,931.32/x
3. Step 3: Cross multiply
   47,997.82x = 72,011.94 × 19,931.32
4. Step 4: Simplify right side
   47,997.82x = 1,435,293,019.96
5. Step 5: Solve for x
   x = 1,435,293,019.96/47,997.82
6. Step 6: Final answer
   x = 29,903.30