Finding the Fourth Proportional to 7,345.69, 10,137.54 and 4,159

Step by Step Solution

1. Step 1: Write the proportion equation
   7,345.69 : 10,137.54 = 4,159 : x
2. Step 2: Convert to fraction form
   7,345.69/10,137.54 = 4,159/x
3. Step 3: Cross multiply
   7,345.69x = 10,137.54 × 4,159
4. Step 4: Simplify right side
   7,345.69x = 42,162,028.86
5. Step 5: Solve for x
   x = 42,162,028.86/7,345.69
6. Step 6: Final answer
   x = 5,739.70