Finding the Fourth Proportional to 52,429.91, 72,353.87 and 28,556.78

Step by Step Solution

1. Step 1: Write the proportion equation
   52,429.91 : 72,353.87 = 28,556.78 : x
2. Step 2: Convert to fraction form
   52,429.91/72,353.87 = 28,556.78/x
3. Step 3: Cross multiply
   52,429.91x = 72,353.87 × 28,556.78
4. Step 4: Simplify right side
   52,429.91x = 2,066,193,043.19
5. Step 5: Solve for x
   x = 2,066,193,043.19/52,429.91
6. Step 6: Final answer
   x = 39,408.67