Finding the Fourth Proportional to 5,012.43, 7,519.31 and 1,891.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,012.43 : 7,519.31 = 1,891.50 : x
2. Step 2: Convert to fraction form
   5,012.43/7,519.31 = 1,891.50/x
3. Step 3: Cross multiply
   5,012.43x = 7,519.31 × 1,891.50
4. Step 4: Simplify right side
   5,012.43x = 14,222,774.87
5. Step 5: Solve for x
   x = 14,222,774.87/5,012.43
6. Step 6: Final answer
   x = 2,837.50