Finding the Fourth Proportional to 42,758.56, 58,992.43 and 27,670.31

Step by Step Solution

1. Step 1: Write the proportion equation
   42,758.56 : 58,992.43 = 27,670.31 : x
2. Step 2: Convert to fraction form
   42,758.56/58,992.43 = 27,670.31/x
3. Step 3: Cross multiply
   42,758.56x = 58,992.43 × 27,670.31
4. Step 4: Simplify right side
   42,758.56x = 1,632,338,656.90
5. Step 5: Solve for x
   x = 1,632,338,656.90/42,758.56
6. Step 6: Final answer
   x = 38,175.72