Finding the Fourth Proportional to 12,924.30, 19,389.33 and 7,079.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,924.30 : 19,389.33 = 7,079.34 : x
2. Step 2: Convert to fraction form
   12,924.30/19,389.33 = 7,079.34/x
3. Step 3: Cross multiply
   12,924.30x = 19,389.33 × 7,079.34
4. Step 4: Simplify right side
   12,924.30x = 137,263,659.44
5. Step 5: Solve for x
   x = 137,263,659.44/12,924.30
6. Step 6: Final answer
   x = 10,620.59