Finding the Fourth Proportional to 5,667.78, 8,444.71 and 5,349.47

Step by Step Solution

1. Step 1: Write the proportion equation
   5,667.78 : 8,444.71 = 5,349.47 : x
2. Step 2: Convert to fraction form
   5,667.78/8,444.71 = 5,349.47/x
3. Step 3: Cross multiply
   5,667.78x = 8,444.71 × 5,349.47
4. Step 4: Simplify right side
   5,667.78x = 45,174,722.80
5. Step 5: Solve for x
   x = 45,174,722.80/5,667.78
6. Step 6: Final answer
   x = 7,970.44