Finding the Fourth Proportional to 13,924.51, 19,216.84 and 7,956.05

Step by Step Solution

1. Step 1: Write the proportion equation
   13,924.51 : 19,216.84 = 7,956.05 : x
2. Step 2: Convert to fraction form
   13,924.51/19,216.84 = 7,956.05/x
3. Step 3: Cross multiply
   13,924.51x = 19,216.84 × 7,956.05
4. Step 4: Simplify right side
   13,924.51x = 152,890,139.88
5. Step 5: Solve for x
   x = 152,890,139.88/13,924.51
6. Step 6: Final answer
   x = 10,979.93