Finding the Fourth Proportional to 681,667.58, 940,658.42 and 375,727.12

Step by Step Solution

1. Step 1: Write the proportion equation
   681,667.58 : 940,658.42 = 375,727.12 : x
2. Step 2: Convert to fraction form
   681,667.58/940,658.42 = 375,727.12/x
3. Step 3: Cross multiply
   681,667.58x = 940,658.42 × 375,727.12
4. Step 4: Simplify right side
   681,667.58x = 353,430,879,050.35
5. Step 5: Solve for x
   x = 353,430,879,050.35/681,667.58
6. Step 6: Final answer
   x = 518,479.81