Finding the Fourth Proportional to 72,447.14, 108,661.47 and 28,043.51

Step by Step Solution

1. Step 1: Write the proportion equation
   72,447.14 : 108,661.47 = 28,043.51 : x
2. Step 2: Convert to fraction form
   72,447.14/108,661.47 = 28,043.51/x
3. Step 3: Cross multiply
   72,447.14x = 108,661.47 × 28,043.51
4. Step 4: Simplify right side
   72,447.14x = 3,047,249,020.56
5. Step 5: Solve for x
   x = 3,047,249,020.56/72,447.14
6. Step 6: Final answer
   x = 42,061.69