Finding the Fourth Proportional to 13,118.96, 19,661.42 and 5,323.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,118.96 : 19,661.42 = 5,323.52 : x
2. Step 2: Convert to fraction form
   13,118.96/19,661.42 = 5,323.52/x
3. Step 3: Cross multiply
   13,118.96x = 19,661.42 × 5,323.52
4. Step 4: Simplify right side
   13,118.96x = 104,667,962.60
5. Step 5: Solve for x
   x = 104,667,962.60/13,118.96
6. Step 6: Final answer
   x = 7,978.37