Finding the Fourth Proportional to 4,662.18, 7,000.16 and 3,111.84

Step by Step Solution

1. Step 1: Write the proportion equation
   4,662.18 : 7,000.16 = 3,111.84 : x
2. Step 2: Convert to fraction form
   4,662.18/7,000.16 = 3,111.84/x
3. Step 3: Cross multiply
   4,662.18x = 7,000.16 × 3,111.84
4. Step 4: Simplify right side
   4,662.18x = 21,783,362.34
5. Step 5: Solve for x
   x = 21,783,362.34/4,662.18
6. Step 6: Final answer
   x = 4,672.36