Finding the Fourth Proportional to 300,803.07, 415,108.25 and 166,667.07

Step by Step Solution

1. Step 1: Write the proportion equation
   300,803.07 : 415,108.25 = 166,667.07 : x
2. Step 2: Convert to fraction form
   300,803.07/415,108.25 = 166,667.07/x
3. Step 3: Cross multiply
   300,803.07x = 415,108.25 × 166,667.07
4. Step 4: Simplify right side
   300,803.07x = 69,184,875,760.33
5. Step 5: Solve for x
   x = 69,184,875,760.33/300,803.07
6. Step 6: Final answer
   x = 230,000.56