Finding the Fourth Proportional to 13,436.44, 20,156.16 and 3,576.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,436.44 : 20,156.16 = 3,576.10 : x
2. Step 2: Convert to fraction form
   13,436.44/20,156.16 = 3,576.10/x
3. Step 3: Cross multiply
   13,436.44x = 20,156.16 × 3,576.10
4. Step 4: Simplify right side
   13,436.44x = 72,080,443.78
5. Step 5: Solve for x
   x = 72,080,443.78/13,436.44
6. Step 6: Final answer
   x = 5,364.55