Finding the Fourth Proportional to 150,640.90, 225,821.82 and 55,818.25

Step by Step Solution

1. Step 1: Write the proportion equation
   150,640.90 : 225,821.82 = 55,818.25 : x
2. Step 2: Convert to fraction form
   150,640.90/225,821.82 = 55,818.25/x
3. Step 3: Cross multiply
   150,640.90x = 225,821.82 × 55,818.25
4. Step 4: Simplify right side
   150,640.90x = 12,604,978,804.22
5. Step 5: Solve for x
   x = 12,604,978,804.22/150,640.90
6. Step 6: Final answer
   x = 83,675.67