Finding the Fourth Proportional to 40,052.48, 55,272.58 and 21,903.55

Step by Step Solution

1. Step 1: Write the proportion equation
   40,052.48 : 55,272.58 = 21,903.55 : x
2. Step 2: Convert to fraction form
   40,052.48/55,272.58 = 21,903.55/x
3. Step 3: Cross multiply
   40,052.48x = 55,272.58 × 21,903.55
4. Step 4: Simplify right side
   40,052.48x = 1,210,665,526.72
5. Step 5: Solve for x
   x = 1,210,665,526.72/40,052.48
6. Step 6: Final answer
   x = 30,226.98