Finding the Fourth Proportional to 13,436.43, 20,154.69 and 4,076.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,436.43 : 20,154.69 = 4,076.52 : x
2. Step 2: Convert to fraction form
   13,436.43/20,154.69 = 4,076.52/x
3. Step 3: Cross multiply
   13,436.43x = 20,154.69 × 4,076.52
4. Step 4: Simplify right side
   13,436.43x = 82,161,037.07
5. Step 5: Solve for x
   x = 82,161,037.07/13,436.43
6. Step 6: Final answer
   x = 6,114.80