Finding the Fourth Proportional to 52,799.37, 72,865.13 and 30,142.05

Step by Step Solution

1. Step 1: Write the proportion equation
   52,799.37 : 72,865.13 = 30,142.05 : x
2. Step 2: Convert to fraction form
   52,799.37/72,865.13 = 30,142.05/x
3. Step 3: Cross multiply
   52,799.37x = 72,865.13 × 30,142.05
4. Step 4: Simplify right side
   52,799.37x = 2,196,304,391.72
5. Step 5: Solve for x
   x = 2,196,304,391.72/52,799.37
6. Step 6: Final answer
   x = 41,597.17