Finding the Fourth Proportional to 7,341.72, 10,128.69 and 4,196.22

Step by Step Solution

1. Step 1: Write the proportion equation
   7,341.72 : 10,128.69 = 4,196.22 : x
2. Step 2: Convert to fraction form
   7,341.72/10,128.69 = 4,196.22/x
3. Step 3: Cross multiply
   7,341.72x = 10,128.69 × 4,196.22
4. Step 4: Simplify right side
   7,341.72x = 42,502,211.55
5. Step 5: Solve for x
   x = 42,502,211.55/7,341.72
6. Step 6: Final answer
   x = 5,789.14