Finding the Fourth Proportional to 13,116.96, 19,658.43 and 5,321.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,116.96 : 19,658.43 = 5,321.52 : x
2. Step 2: Convert to fraction form
   13,116.96/19,658.43 = 5,321.52/x
3. Step 3: Cross multiply
   13,116.96x = 19,658.43 × 5,321.52
4. Step 4: Simplify right side
   13,116.96x = 104,612,728.41
5. Step 5: Solve for x
   x = 104,612,728.41/13,116.96
6. Step 6: Final answer
   x = 7,975.38