Finding the Fourth Proportional to 4,916.10, 6,788.72 and 3,124.16

Step by Step Solution

1. Step 1: Write the proportion equation
   4,916.10 : 6,788.72 = 3,124.16 : x
2. Step 2: Convert to fraction form
   4,916.10/6,788.72 = 3,124.16/x
3. Step 3: Cross multiply
   4,916.10x = 6,788.72 × 3,124.16
4. Step 4: Simplify right side
   4,916.10x = 21,209,047.48
5. Step 5: Solve for x
   x = 21,209,047.48/4,916.10
6. Step 6: Final answer
   x = 4,314.20