Finding the Fourth Proportional to 67,872.71, 101,823.69 and 20,483.83

Step by Step Solution

1. Step 1: Write the proportion equation
   67,872.71 : 101,823.69 = 20,483.83 : x
2. Step 2: Convert to fraction form
   67,872.71/101,823.69 = 20,483.83/x
3. Step 3: Cross multiply
   67,872.71x = 101,823.69 × 20,483.83
4. Step 4: Simplify right side
   67,872.71x = 2,085,739,053.51
5. Step 5: Solve for x
   x = 2,085,739,053.51/67,872.71
6. Step 6: Final answer
   x = 30,730.16