Finding the Fourth Proportional to 12,730.16, 19,100.88 and 4,939.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,730.16 : 19,100.88 = 4,939.56 : x
2. Step 2: Convert to fraction form
   12,730.16/19,100.88 = 4,939.56/x
3. Step 3: Cross multiply
   12,730.16x = 19,100.88 × 4,939.56
4. Step 4: Simplify right side
   12,730.16x = 94,349,942.81
5. Step 5: Solve for x
   x = 94,349,942.81/12,730.16
6. Step 6: Final answer
   x = 7,411.53