Finding the Fourth Proportional to 94,939.05, 142,386.69 and 28,377.72

Step by Step Solution

1. Step 1: Write the proportion equation
   94,939.05 : 142,386.69 = 28,377.72 : x
2. Step 2: Convert to fraction form
   94,939.05/142,386.69 = 28,377.72/x
3. Step 3: Cross multiply
   94,939.05x = 142,386.69 × 28,377.72
4. Step 4: Simplify right side
   94,939.05x = 4,040,609,620.55
5. Step 5: Solve for x
   x = 4,040,609,620.55/94,939.05
6. Step 6: Final answer
   x = 42,560.04