Finding the Fourth Proportional to 103,666.37, 155,480.72 and 28,767.69

Step by Step Solution

1. Step 1: Write the proportion equation
   103,666.37 : 155,480.72 = 28,767.69 : x
2. Step 2: Convert to fraction form
   103,666.37/155,480.72 = 28,767.69/x
3. Step 3: Cross multiply
   103,666.37x = 155,480.72 × 28,767.69
4. Step 4: Simplify right side
   103,666.37x = 4,472,821,010.10
5. Step 5: Solve for x
   x = 4,472,821,010.10/103,666.37
6. Step 6: Final answer
   x = 43,146.31