Finding the Fourth Proportional to 34,921.92, 52,396.72 and 12,736.72

Step by Step Solution

1. Step 1: Write the proportion equation
   34,921.92 : 52,396.72 = 12,736.72 : x
2. Step 2: Convert to fraction form
   34,921.92/52,396.72 = 12,736.72/x
3. Step 3: Cross multiply
   34,921.92x = 52,396.72 × 12,736.72
4. Step 4: Simplify right side
   34,921.92x = 667,362,351.56
5. Step 5: Solve for x
   x = 667,362,351.56/34,921.92
6. Step 6: Final answer
   x = 19,110.13