Finding the Fourth Proportional to 7,343.45, 10,131.50 and 4,156.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,343.45 : 10,131.50 = 4,156.31 : x
2. Step 2: Convert to fraction form
   7,343.45/10,131.50 = 4,156.31/x
3. Step 3: Cross multiply
   7,343.45x = 10,131.50 × 4,156.31
4. Step 4: Simplify right side
   7,343.45x = 42,109,583.33
5. Step 5: Solve for x
   x = 42,109,583.33/7,343.45
6. Step 6: Final answer
   x = 5,734.31