Finding the Fourth Proportional to 5,123.75, 7,068.69 and 3,782.57

Step by Step Solution

1. Step 1: Write the proportion equation
   5,123.75 : 7,068.69 = 3,782.57 : x
2. Step 2: Convert to fraction form
   5,123.75/7,068.69 = 3,782.57/x
3. Step 3: Cross multiply
   5,123.75x = 7,068.69 × 3,782.57
4. Step 4: Simplify right side
   5,123.75x = 26,737,814.73
5. Step 5: Solve for x
   x = 26,737,814.73/5,123.75
6. Step 6: Final answer
   x = 5,218.41