Finding the Fourth Proportional to 40,061.39, 55,283.05 and 21,911.82

Step by Step Solution

1. Step 1: Write the proportion equation
   40,061.39 : 55,283.05 = 21,911.82 : x
2. Step 2: Convert to fraction form
   40,061.39/55,283.05 = 21,911.82/x
3. Step 3: Cross multiply
   40,061.39x = 55,283.05 × 21,911.82
4. Step 4: Simplify right side
   40,061.39x = 1,211,352,131.09
5. Step 5: Solve for x
   x = 1,211,352,131.09/40,061.39
6. Step 6: Final answer
   x = 30,237.40