Finding the Fourth Proportional to 5,431.50, 7,495.47 and 2,947.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,431.50 : 7,495.47 = 2,947.50 : x
2. Step 2: Convert to fraction form
   5,431.50/7,495.47 = 2,947.50/x
3. Step 3: Cross multiply
   5,431.50x = 7,495.47 × 2,947.50
4. Step 4: Simplify right side
   5,431.50x = 22,092,897.83
5. Step 5: Solve for x
   x = 22,092,897.83/5,431.50
6. Step 6: Final answer
   x = 4,067.55