Finding the Fourth Proportional to 5,100.42, 7,646.31 and 2,758.98

Step by Step Solution

1. Step 1: Write the proportion equation
   5,100.42 : 7,646.31 = 2,758.98 : x
2. Step 2: Convert to fraction form
   5,100.42/7,646.31 = 2,758.98/x
3. Step 3: Cross multiply
   5,100.42x = 7,646.31 × 2,758.98
4. Step 4: Simplify right side
   5,100.42x = 21,096,016.36
5. Step 5: Solve for x
   x = 21,096,016.36/5,100.42
6. Step 6: Final answer
   x = 4,136.13