Finding the Fourth Proportional to 12,735.72, 19,093.86 and 4,940.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,735.72 : 19,093.86 = 4,940.28 : x
2. Step 2: Convert to fraction form
   12,735.72/19,093.86 = 4,940.28/x
3. Step 3: Cross multiply
   12,735.72x = 19,093.86 × 4,940.28
4. Step 4: Simplify right side
   12,735.72x = 94,329,014.68
5. Step 5: Solve for x
   x = 94,329,014.68/12,735.72
6. Step 6: Final answer
   x = 7,406.65