Finding the Fourth Proportional to 300,907.98, 415,237.59 and 173,575.98

Step by Step Solution

1. Step 1: Write the proportion equation
   300,907.98 : 415,237.59 = 173,575.98 : x
2. Step 2: Convert to fraction form
   300,907.98/415,237.59 = 173,575.98/x
3. Step 3: Cross multiply
   300,907.98x = 415,237.59 × 173,575.98
4. Step 4: Simplify right side
   300,907.98x = 72,075,271,617.09
5. Step 5: Solve for x
   x = 72,075,271,617.09/300,907.98
6. Step 6: Final answer
   x = 239,525.96