Finding the Fourth Proportional to 5,185.50, 7,156.17 and 2,947.47

Step by Step Solution

1. Step 1: Write the proportion equation
   5,185.50 : 7,156.17 = 2,947.47 : x
2. Step 2: Convert to fraction form
   5,185.50/7,156.17 = 2,947.47/x
3. Step 3: Cross multiply
   5,185.50x = 7,156.17 × 2,947.47
4. Step 4: Simplify right side
   5,185.50x = 21,092,596.39
5. Step 5: Solve for x
   x = 21,092,596.39/5,185.50
6. Step 6: Final answer
   x = 4,067.61