Finding the Fourth Proportional to 23,323.91, 34,979.47 and 13,956.56

Step by Step Solution

1. Step 1: Write the proportion equation
   23,323.91 : 34,979.47 = 13,956.56 : x
2. Step 2: Convert to fraction form
   23,323.91/34,979.47 = 13,956.56/x
3. Step 3: Cross multiply
   23,323.91x = 34,979.47 × 13,956.56
4. Step 4: Simplify right side
   23,323.91x = 488,193,071.82
5. Step 5: Solve for x
   x = 488,193,071.82/23,323.91
6. Step 6: Final answer
   x = 20,931.01