Finding the Fourth Proportional to 40,145.46, 55,396.70 and 22,237.12

Step by Step Solution

1. Step 1: Write the proportion equation
   40,145.46 : 55,396.70 = 22,237.12 : x
2. Step 2: Convert to fraction form
   40,145.46/55,396.70 = 22,237.12/x
3. Step 3: Cross multiply
   40,145.46x = 55,396.70 × 22,237.12
4. Step 4: Simplify right side
   40,145.46x = 1,231,863,106.95
5. Step 5: Solve for x
   x = 1,231,863,106.95/40,145.46
6. Step 6: Final answer
   x = 30,684.99