Finding the Fourth Proportional to 13,225.12, 19,845.78 and 5,326.18

Step by Step Solution

1. Step 1: Write the proportion equation
   13,225.12 : 19,845.78 = 5,326.18 : x
2. Step 2: Convert to fraction form
   13,225.12/19,845.78 = 5,326.18/x
3. Step 3: Cross multiply
   13,225.12x = 19,845.78 × 5,326.18
4. Step 4: Simplify right side
   13,225.12x = 105,702,196.52
5. Step 5: Solve for x
   x = 105,702,196.52/13,225.12
6. Step 6: Final answer
   x = 7,992.53