Finding the Fourth Proportional to 15,436.80, 23,146.56 and 5,047.68

Step by Step Solution

1. Step 1: Write the proportion equation
   15,436.80 : 23,146.56 = 5,047.68 : x
2. Step 2: Convert to fraction form
   15,436.80/23,146.56 = 5,047.68/x
3. Step 3: Cross multiply
   15,436.80x = 23,146.56 × 5,047.68
4. Step 4: Simplify right side
   15,436.80x = 116,836,427.98
5. Step 5: Solve for x
   x = 116,836,427.98/15,436.80
6. Step 6: Final answer
   x = 7,568.69