Finding the Fourth Proportional to 40,042.61, 55,256.42 and 22,136.54

Step by Step Solution

1. Step 1: Write the proportion equation
   40,042.61 : 55,256.42 = 22,136.54 : x
2. Step 2: Convert to fraction form
   40,042.61/55,256.42 = 22,136.54/x
3. Step 3: Cross multiply
   40,042.61x = 55,256.42 × 22,136.54
4. Step 4: Simplify right side
   40,042.61x = 1,223,186,145.07
5. Step 5: Solve for x
   x = 1,223,186,145.07/40,042.61
6. Step 6: Final answer
   x = 30,547.12