Finding the Fourth Proportional to 6,142.02, 8,483.88 and 5,343.90

Step by Step Solution

1. Step 1: Write the proportion equation
   6,142.02 : 8,483.88 = 5,343.90 : x
2. Step 2: Convert to fraction form
   6,142.02/8,483.88 = 5,343.90/x
3. Step 3: Cross multiply
   6,142.02x = 8,483.88 × 5,343.90
4. Step 4: Simplify right side
   6,142.02x = 45,337,006.33
5. Step 5: Solve for x
   x = 45,337,006.33/6,142.02
6. Step 6: Final answer
   x = 7,381.45