Finding the Fourth Proportional to 51,812.01, 71,499.78 and 30,306.51

Step by Step Solution

1. Step 1: Write the proportion equation
   51,812.01 : 71,499.78 = 30,306.51 : x
2. Step 2: Convert to fraction form
   51,812.01/71,499.78 = 30,306.51/x
3. Step 3: Cross multiply
   51,812.01x = 71,499.78 × 30,306.51
4. Step 4: Simplify right side
   51,812.01x = 2,166,908,797.57
5. Step 5: Solve for x
   x = 2,166,908,797.57/51,812.01
6. Step 6: Final answer
   x = 41,822.52