Finding the Fourth Proportional to 171,667.38, 257,495.60 and 53,306.94

Step by Step Solution

1. Step 1: Write the proportion equation
   171,667.38 : 257,495.60 = 53,306.94 : x
2. Step 2: Convert to fraction form
   171,667.38/257,495.60 = 53,306.94/x
3. Step 3: Cross multiply
   171,667.38x = 257,495.60 × 53,306.94
4. Step 4: Simplify right side
   171,667.38x = 13,726,302,232.93
5. Step 5: Solve for x
   x = 13,726,302,232.93/171,667.38
6. Step 6: Final answer
   x = 79,958.71