Finding the Fourth Proportional to 5,312.46, 7,301.20 and 4,131.48

Step by Step Solution

1. Step 1: Write the proportion equation
   5,312.46 : 7,301.20 = 4,131.48 : x
2. Step 2: Convert to fraction form
   5,312.46/7,301.20 = 4,131.48/x
3. Step 3: Cross multiply
   5,312.46x = 7,301.20 × 4,131.48
4. Step 4: Simplify right side
   5,312.46x = 30,164,761.78
5. Step 5: Solve for x
   x = 30,164,761.78/5,312.46
6. Step 6: Final answer
   x = 5,678.12