Finding the Fourth Proportional to 12,926.94, 19,419.57 and 7,736.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,926.94 : 19,419.57 = 7,736.46 : x
2. Step 2: Convert to fraction form
   12,926.94/19,419.57 = 7,736.46/x
3. Step 3: Cross multiply
   12,926.94x = 19,419.57 × 7,736.46
4. Step 4: Simplify right side
   12,926.94x = 150,238,726.52
5. Step 5: Solve for x
   x = 150,238,726.52/12,926.94
6. Step 6: Final answer
   x = 11,622.14