Finding the Fourth Proportional to 51,483, 71,047.73 and 28,821.42

Step by Step Solution

1. Step 1: Write the proportion equation
   51,483 : 71,047.73 = 28,821.42 : x
2. Step 2: Convert to fraction form
   51,483/71,047.73 = 28,821.42/x
3. Step 3: Cross multiply
   51,483x = 71,047.73 × 28,821.42
4. Step 4: Simplify right side
   51,483x = 2,047,696,322.27
5. Step 5: Solve for x
   x = 2,047,696,322.27/51,483
6. Step 6: Final answer
   x = 39,774.22