Finding the Fourth Proportional to 47,998.32, 72,012.69 and 19,931.82

Step by Step Solution

1. Step 1: Write the proportion equation
   47,998.32 : 72,012.69 = 19,931.82 : x
2. Step 2: Convert to fraction form
   47,998.32/72,012.69 = 19,931.82/x
3. Step 3: Cross multiply
   47,998.32x = 72,012.69 × 19,931.82
4. Step 4: Simplify right side
   47,998.32x = 1,435,343,974.80
5. Step 5: Solve for x
   x = 1,435,343,974.80/47,998.32
6. Step 6: Final answer
   x = 29,904.05