Finding the Fourth Proportional to 72,561.66, 108,814.53 and 28,182.57

Step by Step Solution

1. Step 1: Write the proportion equation
   72,561.66 : 108,814.53 = 28,182.57 : x
2. Step 2: Convert to fraction form
   72,561.66/108,814.53 = 28,182.57/x
3. Step 3: Cross multiply
   72,561.66x = 108,814.53 × 28,182.57
4. Step 4: Simplify right side
   72,561.66x = 3,066,672,806.37
5. Step 5: Solve for x
   x = 3,066,672,806.37/72,561.66
6. Step 6: Final answer
   x = 42,262.99