Finding the Fourth Proportional to 72,556.69, 108,814.37 and 28,173.95

Step by Step Solution

1. Step 1: Write the proportion equation
   72,556.69 : 108,814.37 = 28,173.95 : x
2. Step 2: Convert to fraction form
   72,556.69/108,814.37 = 28,173.95/x
3. Step 3: Cross multiply
   72,556.69x = 108,814.37 × 28,173.95
4. Step 4: Simplify right side
   72,556.69x = 3,065,730,478.79
5. Step 5: Solve for x
   x = 3,065,730,478.79/72,556.69
6. Step 6: Final answer
   x = 42,252.90