Finding the Fourth Proportional to 5,787.40, 7,981.59 and 4,667.98

Step by Step Solution

1. Step 1: Write the proportion equation
   5,787.40 : 7,981.59 = 4,667.98 : x
2. Step 2: Convert to fraction form
   5,787.40/7,981.59 = 4,667.98/x
3. Step 3: Cross multiply
   5,787.40x = 7,981.59 × 4,667.98
4. Step 4: Simplify right side
   5,787.40x = 37,257,902.49
5. Step 5: Solve for x
   x = 37,257,902.49/5,787.40
6. Step 6: Final answer
   x = 6,437.76