Finding the Fourth Proportional to 508,406.27, 762,138.52 and 188,379.83

Step by Step Solution

1. Step 1: Write the proportion equation
   508,406.27 : 762,138.52 = 188,379.83 : x
2. Step 2: Convert to fraction form
   508,406.27/762,138.52 = 188,379.83/x
3. Step 3: Cross multiply
   508,406.27x = 762,138.52 × 188,379.83
4. Step 4: Simplify right side
   508,406.27x = 143,571,521,981.42
5. Step 5: Solve for x
   x = 143,571,521,981.42/508,406.27
6. Step 6: Final answer
   x = 282,395.26