Finding the Fourth Proportional to 15,591.73, 23,391.69 and 4,499.31

Step by Step Solution

1. Step 1: Write the proportion equation
   15,591.73 : 23,391.69 = 4,499.31 : x
2. Step 2: Convert to fraction form
   15,591.73/23,391.69 = 4,499.31/x
3. Step 3: Cross multiply
   15,591.73x = 23,391.69 × 4,499.31
4. Step 4: Simplify right side
   15,591.73x = 105,246,464.73
5. Step 5: Solve for x
   x = 105,246,464.73/15,591.73
6. Step 6: Final answer
   x = 6,750.15