Finding the Fourth Proportional to 266,498.50, 367,732.56 and 171,134.50

Step by Step Solution

1. Step 1: Write the proportion equation
   266,498.50 : 367,732.56 = 171,134.50 : x
2. Step 2: Convert to fraction form
   266,498.50/367,732.56 = 171,134.50/x
3. Step 3: Cross multiply
   266,498.50x = 367,732.56 × 171,134.50
4. Step 4: Simplify right side
   266,498.50x = 62,931,727,789.32
5. Step 5: Solve for x
   x = 62,931,727,789.32/266,498.50
6. Step 6: Final answer
   x = 236,142.90