Finding the Fourth Proportional to 72,629.10, 108,907.20 and 33,141.60

Step by Step Solution

1. Step 1: Write the proportion equation
   72,629.10 : 108,907.20 = 33,141.60 : x
2. Step 2: Convert to fraction form
   72,629.10/108,907.20 = 33,141.60/x
3. Step 3: Cross multiply
   72,629.10x = 108,907.20 × 33,141.60
4. Step 4: Simplify right side
   72,629.10x = 3,609,358,859.52
5. Step 5: Solve for x
   x = 3,609,358,859.52/72,629.10
6. Step 6: Final answer
   x = 49,695.77