Finding the Fourth Proportional to 13,123.46, 19,668.18 and 5,328.02

Step by Step Solution

1. Step 1: Write the proportion equation
   13,123.46 : 19,668.18 = 5,328.02 : x
2. Step 2: Convert to fraction form
   13,123.46/19,668.18 = 5,328.02/x
3. Step 3: Cross multiply
   13,123.46x = 19,668.18 × 5,328.02
4. Step 4: Simplify right side
   13,123.46x = 104,792,456.40
5. Step 5: Solve for x
   x = 104,792,456.40/13,123.46
6. Step 6: Final answer
   x = 7,985.12