Finding the Fourth Proportional to 4,663.94, 7,002.78 and 3,113.60

Step by Step Solution

1. Step 1: Write the proportion equation
   4,663.94 : 7,002.78 = 3,113.60 : x
2. Step 2: Convert to fraction form
   4,663.94/7,002.78 = 3,113.60/x
3. Step 3: Cross multiply
   4,663.94x = 7,002.78 × 3,113.60
4. Step 4: Simplify right side
   4,663.94x = 21,803,855.81
5. Step 5: Solve for x
   x = 21,803,855.81/4,663.94
6. Step 6: Final answer
   x = 4,674.99