Finding the Fourth Proportional to 4,981.75, 7,480.95 and 3,111.99

Step by Step Solution

1. Step 1: Write the proportion equation
   4,981.75 : 7,480.95 = 3,111.99 : x
2. Step 2: Convert to fraction form
   4,981.75/7,480.95 = 3,111.99/x
3. Step 3: Cross multiply
   4,981.75x = 7,480.95 × 3,111.99
4. Step 4: Simplify right side
   4,981.75x = 23,280,588.63
5. Step 5: Solve for x
   x = 23,280,588.63/4,981.75
6. Step 6: Final answer
   x = 4,673.18