Finding the Fourth Proportional to 5,562.51, 7,667.10 and 3,947.98

Step by Step Solution

1. Step 1: Write the proportion equation
   5,562.51 : 7,667.10 = 3,947.98 : x
2. Step 2: Convert to fraction form
   5,562.51/7,667.10 = 3,947.98/x
3. Step 3: Cross multiply
   5,562.51x = 7,667.10 × 3,947.98
4. Step 4: Simplify right side
   5,562.51x = 30,269,539.11
5. Step 5: Solve for x
   x = 30,269,539.11/5,562.51
6. Step 6: Final answer
   x = 5,441.70