Finding the Fourth Proportional to 52,805.30, 72,868.53 and 30,143.39

Step by Step Solution

1. Step 1: Write the proportion equation
   52,805.30 : 72,868.53 = 30,143.39 : x
2. Step 2: Convert to fraction form
   52,805.30/72,868.53 = 30,143.39/x
3. Step 3: Cross multiply
   52,805.30x = 72,868.53 × 30,143.39
4. Step 4: Simplify right side
   52,805.30x = 2,196,504,797.26
5. Step 5: Solve for x
   x = 2,196,504,797.26/52,805.30
6. Step 6: Final answer
   x = 41,596.29