Finding the Fourth Proportional to 40,136.96, 55,388.04 and 22,232.72

Step by Step Solution

1. Step 1: Write the proportion equation
   40,136.96 : 55,388.04 = 22,232.72 : x
2. Step 2: Convert to fraction form
   40,136.96/55,388.04 = 22,232.72/x
3. Step 3: Cross multiply
   40,136.96x = 55,388.04 × 22,232.72
4. Step 4: Simplify right side
   40,136.96x = 1,231,426,784.67
5. Step 5: Solve for x
   x = 1,231,426,784.67/40,136.96
6. Step 6: Final answer
   x = 30,680.62