Finding the Fourth Proportional to 286,667.52, 395,601.42 and 157,608.18

Step by Step Solution

1. Step 1: Write the proportion equation
   286,667.52 : 395,601.42 = 157,608.18 : x
2. Step 2: Convert to fraction form
   286,667.52/395,601.42 = 157,608.18/x
3. Step 3: Cross multiply
   286,667.52x = 395,601.42 × 157,608.18
4. Step 4: Simplify right side
   286,667.52x = 62,350,019,811.62
5. Step 5: Solve for x
   x = 62,350,019,811.62/286,667.52
6. Step 6: Final answer
   x = 217,499.42