Finding the Fourth Proportional to 5,611.80, 7,736.18 and 3,927.98

Step by Step Solution

1. Step 1: Write the proportion equation
   5,611.80 : 7,736.18 = 3,927.98 : x
2. Step 2: Convert to fraction form
   5,611.80/7,736.18 = 3,927.98/x
3. Step 3: Cross multiply
   5,611.80x = 7,736.18 × 3,927.98
4. Step 4: Simplify right side
   5,611.80x = 30,387,560.32
5. Step 5: Solve for x
   x = 30,387,560.32/5,611.80
6. Step 6: Final answer
   x = 5,414.94