Finding the Fourth Proportional to 40,089.84, 55,290.42 and 30,041.88

Step by Step Solution

1. Step 1: Write the proportion equation
   40,089.84 : 55,290.42 = 30,041.88 : x
2. Step 2: Convert to fraction form
   40,089.84/55,290.42 = 30,041.88/x
3. Step 3: Cross multiply
   40,089.84x = 55,290.42 × 30,041.88
4. Step 4: Simplify right side
   40,089.84x = 1,661,028,162.79
5. Step 5: Solve for x
   x = 1,661,028,162.79/40,089.84
6. Step 6: Final answer
   x = 41,432.65