Finding the Fourth Proportional to 5,606.98, 7,681.60 and 5,396.78

Step by Step Solution

1. Step 1: Write the proportion equation
   5,606.98 : 7,681.60 = 5,396.78 : x
2. Step 2: Convert to fraction form
   5,606.98/7,681.60 = 5,396.78/x
3. Step 3: Cross multiply
   5,606.98x = 7,681.60 × 5,396.78
4. Step 4: Simplify right side
   5,606.98x = 41,455,910.96
5. Step 5: Solve for x
   x = 41,455,910.96/5,606.98
6. Step 6: Final answer
   x = 7,393.63