Finding the Fourth Proportional to 40,215.61, 55,494.88 and 22,309.98

Step by Step Solution

1. Step 1: Write the proportion equation
   40,215.61 : 55,494.88 = 22,309.98 : x
2. Step 2: Convert to fraction form
   40,215.61/55,494.88 = 22,309.98/x
3. Step 3: Cross multiply
   40,215.61x = 55,494.88 × 22,309.98
4. Step 4: Simplify right side
   40,215.61x = 1,238,089,662.90
5. Step 5: Solve for x
   x = 1,238,089,662.90/40,215.61
6. Step 6: Final answer
   x = 30,786.30