Finding the Fourth Proportional to 40,134.96, 55,352.40 and 30,086.88

Step by Step Solution

1. Step 1: Write the proportion equation
   40,134.96 : 55,352.40 = 30,086.88 : x
2. Step 2: Convert to fraction form
   40,134.96/55,352.40 = 30,086.88/x
3. Step 3: Cross multiply
   40,134.96x = 55,352.40 × 30,086.88
4. Step 4: Simplify right side
   40,134.96x = 1,665,381,016.51
5. Step 5: Solve for x
   x = 1,665,381,016.51/40,134.96
6. Step 6: Final answer
   x = 41,494.52