Finding the Fourth Proportional to 508,408.27, 762,141.52 and 188,381.83

Step by Step Solution

1. Step 1: Write the proportion equation
   508,408.27 : 762,141.52 = 188,381.83 : x
2. Step 2: Convert to fraction form
   508,408.27/762,141.52 = 188,381.83/x
3. Step 3: Cross multiply
   508,408.27x = 762,141.52 × 188,381.83
4. Step 4: Simplify right side
   508,408.27x = 143,573,614,256.58
5. Step 5: Solve for x
   x = 143,573,614,256.58/508,408.27
6. Step 6: Final answer
   x = 282,398.27