Finding the Fourth Proportional to 40,139.37, 55,393.86 and 22,233.99

Step by Step Solution

1. Step 1: Write the proportion equation
   40,139.37 : 55,393.86 = 22,233.99 : x
2. Step 2: Convert to fraction form
   40,139.37/55,393.86 = 22,233.99/x
3. Step 3: Cross multiply
   40,139.37x = 55,393.86 × 22,233.99
4. Step 4: Simplify right side
   40,139.37x = 1,231,626,529.30
5. Step 5: Solve for x
   x = 1,231,626,529.30/40,139.37
6. Step 6: Final answer
   x = 30,683.75