Finding the Fourth Proportional to 55,402.80, 82,940.40 and 35,622.72

Step by Step Solution

1. Step 1: Write the proportion equation
   55,402.80 : 82,940.40 = 35,622.72 : x
2. Step 2: Convert to fraction form
   55,402.80/82,940.40 = 35,622.72/x
3. Step 3: Cross multiply
   55,402.80x = 82,940.40 × 35,622.72
4. Step 4: Simplify right side
   55,402.80x = 2,954,562,645.89
5. Step 5: Solve for x
   x = 2,954,562,645.89/55,402.80
6. Step 6: Final answer
   x = 53,328.76