Finding the Fourth Proportional to 316,776.27, 437,151.27 and 189,451.89

Step by Step Solution

1. Step 1: Write the proportion equation
   316,776.27 : 437,151.27 = 189,451.89 : x
2. Step 2: Convert to fraction form
   316,776.27/437,151.27 = 189,451.89/x
3. Step 3: Cross multiply
   316,776.27x = 437,151.27 × 189,451.89
4. Step 4: Simplify right side
   316,776.27x = 82,819,134,317.40
5. Step 5: Solve for x
   x = 82,819,134,317.40/316,776.27
6. Step 6: Final answer
   x = 261,443.62