Finding the Fourth Proportional to 7,346.75, 10,139.15 and 4,160.61

Step by Step Solution

1. Step 1: Write the proportion equation
   7,346.75 : 10,139.15 = 4,160.61 : x
2. Step 2: Convert to fraction form
   7,346.75/10,139.15 = 4,160.61/x
3. Step 3: Cross multiply
   7,346.75x = 10,139.15 × 4,160.61
4. Step 4: Simplify right side
   7,346.75x = 42,185,007.36
5. Step 5: Solve for x
   x = 42,185,007.36/7,346.75
6. Step 6: Final answer
   x = 5,741.99