Finding the Fourth Proportional to 40,072.84, 55,300.86 and 22,168.42

Step by Step Solution

1. Step 1: Write the proportion equation
   40,072.84 : 55,300.86 = 22,168.42 : x
2. Step 2: Convert to fraction form
   40,072.84/55,300.86 = 22,168.42/x
3. Step 3: Cross multiply
   40,072.84x = 55,300.86 × 22,168.42
4. Step 4: Simplify right side
   40,072.84x = 1,225,932,690.84
5. Step 5: Solve for x
   x = 1,225,932,690.84/40,072.84
6. Step 6: Final answer
   x = 30,592.61