Finding the Fourth Proportional to 40,116.38, 55,361.47 and 21,967.87

Step by Step Solution

1. Step 1: Write the proportion equation
   40,116.38 : 55,361.47 = 21,967.87 : x
2. Step 2: Convert to fraction form
   40,116.38/55,361.47 = 21,967.87/x
3. Step 3: Cross multiply
   40,116.38x = 55,361.47 × 21,967.87
4. Step 4: Simplify right side
   40,116.38x = 1,216,173,636.38
5. Step 5: Solve for x
   x = 1,216,173,636.38/40,116.38
6. Step 6: Final answer
   x = 30,316.14