Finding the Fourth Proportional to 51,549.29, 71,143 and 28,892.10

Step by Step Solution

1. Step 1: Write the proportion equation
   51,549.29 : 71,143 = 28,892.10 : x
2. Step 2: Convert to fraction form
   51,549.29/71,143 = 28,892.10/x
3. Step 3: Cross multiply
   51,549.29x = 71,143 × 28,892.10
4. Step 4: Simplify right side
   51,549.29x = 2,055,470,670.30
5. Step 5: Solve for x
   x = 2,055,470,670.30/51,549.29
6. Step 6: Final answer
   x = 39,873.89