Finding the Fourth Proportional to 12,774.28, 19,150.05 and 4,981.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,774.28 : 19,150.05 = 4,981.30 : x
2. Step 2: Convert to fraction form
   12,774.28/19,150.05 = 4,981.30/x
3. Step 3: Cross multiply
   12,774.28x = 19,150.05 × 4,981.30
4. Step 4: Simplify right side
   12,774.28x = 95,392,144.07
5. Step 5: Solve for x
   x = 95,392,144.07/12,774.28
6. Step 6: Final answer
   x = 7,467.52