Finding the Fourth Proportional to 42,185.86, 58,170.10 and 27,072.78

Step by Step Solution

1. Step 1: Write the proportion equation
   42,185.86 : 58,170.10 = 27,072.78 : x
2. Step 2: Convert to fraction form
   42,185.86/58,170.10 = 27,072.78/x
3. Step 3: Cross multiply
   42,185.86x = 58,170.10 × 27,072.78
4. Step 4: Simplify right side
   42,185.86x = 1,574,826,412.03
5. Step 5: Solve for x
   x = 1,574,826,412.03/42,185.86
6. Step 6: Final answer
   x = 37,330.67