Finding the Fourth Proportional to 82,016.28, 113,168.72 and 45,709.80

Step by Step Solution

1. Step 1: Write the proportion equation
   82,016.28 : 113,168.72 = 45,709.80 : x
2. Step 2: Convert to fraction form
   82,016.28/113,168.72 = 45,709.80/x
3. Step 3: Cross multiply
   82,016.28x = 113,168.72 × 45,709.80
4. Step 4: Simplify right side
   82,016.28x = 5,172,919,557.46
5. Step 5: Solve for x
   x = 5,172,919,557.46/82,016.28
6. Step 6: Final answer
   x = 63,071.86