Finding the Fourth Proportional to 82,008.40, 113,172.72 and 45,708.84

Step by Step Solution

1. Step 1: Write the proportion equation
   82,008.40 : 113,172.72 = 45,708.84 : x
2. Step 2: Convert to fraction form
   82,008.40/113,172.72 = 45,708.84/x
3. Step 3: Cross multiply
   82,008.40x = 113,172.72 × 45,708.84
4. Step 4: Simplify right side
   82,008.40x = 5,172,993,750.84
5. Step 5: Solve for x
   x = 5,172,993,750.84/82,008.40
6. Step 6: Final answer
   x = 63,078.83