Finding the Fourth Proportional to 297,300.93, 446,019.48 and 128,849.55

Step by Step Solution

1. Step 1: Write the proportion equation
   297,300.93 : 446,019.48 = 128,849.55 : x
2. Step 2: Convert to fraction form
   297,300.93/446,019.48 = 128,849.55/x
3. Step 3: Cross multiply
   297,300.93x = 446,019.48 × 128,849.55
4. Step 4: Simplify right side
   297,300.93x = 57,469,409,289.23
5. Step 5: Solve for x
   x = 57,469,409,289.23/297,300.93
6. Step 6: Final answer
   x = 193,303.83