Finding the Fourth Proportional to 49,514, 74,280.72 and 21,812

Step by Step Solution

1. Step 1: Write the proportion equation
   49,514 : 74,280.72 = 21,812 : x
2. Step 2: Convert to fraction form
   49,514/74,280.72 = 21,812/x
3. Step 3: Cross multiply
   49,514x = 74,280.72 × 21,812
4. Step 4: Simplify right side
   49,514x = 1,620,211,064.64
5. Step 5: Solve for x
   x = 1,620,211,064.64/49,514
6. Step 6: Final answer
   x = 32,722.28