Finding the Fourth Proportional to 12,956, 19,441.04 and 5,164.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,956 : 19,441.04 = 5,164.80 : x
2. Step 2: Convert to fraction form
   12,956/19,441.04 = 5,164.80/x
3. Step 3: Cross multiply
   12,956x = 19,441.04 × 5,164.80
4. Step 4: Simplify right side
   12,956x = 100,409,083.39
5. Step 5: Solve for x
   x = 100,409,083.39/12,956
6. Step 6: Final answer
   x = 7,750.01