Finding the Fourth Proportional to 40,128.84, 55,384.02 and 22,901.22

Step by Step Solution

1. Step 1: Write the proportion equation
   40,128.84 : 55,384.02 = 22,901.22 : x
2. Step 2: Convert to fraction form
   40,128.84/55,384.02 = 22,901.22/x
3. Step 3: Cross multiply
   40,128.84x = 55,384.02 × 22,901.22
4. Step 4: Simplify right side
   40,128.84x = 1,268,361,626.50
5. Step 5: Solve for x
   x = 1,268,361,626.50/40,128.84
6. Step 6: Final answer
   x = 31,607.23