Finding the Fourth Proportional to 13,926.59, 19,218.73 and 7,958.25

Step by Step Solution

1. Step 1: Write the proportion equation
   13,926.59 : 19,218.73 = 7,958.25 : x
2. Step 2: Convert to fraction form
   13,926.59/19,218.73 = 7,958.25/x
3. Step 3: Cross multiply
   13,926.59x = 19,218.73 × 7,958.25
4. Step 4: Simplify right side
   13,926.59x = 152,947,322.14
5. Step 5: Solve for x
   x = 152,947,322.14/13,926.59
6. Step 6: Final answer
   x = 10,982.40