Finding the Fourth Proportional to 13,027.19, 17,978.42 and 7,924.71

Step by Step Solution

1. Step 1: Write the proportion equation
   13,027.19 : 17,978.42 = 7,924.71 : x
2. Step 2: Convert to fraction form
   13,027.19/17,978.42 = 7,924.71/x
3. Step 3: Cross multiply
   13,027.19x = 17,978.42 × 7,924.71
4. Step 4: Simplify right side
   13,027.19x = 142,473,655.05
5. Step 5: Solve for x
   x = 142,473,655.05/13,027.19
6. Step 6: Final answer
   x = 10,936.64