Finding the Fourth Proportional to 82,086.42, 113,274.38 and 47,628.50

Step by Step Solution

1. Step 1: Write the proportion equation
   82,086.42 : 113,274.38 = 47,628.50 : x
2. Step 2: Convert to fraction form
   82,086.42/113,274.38 = 47,628.50/x
3. Step 3: Cross multiply
   82,086.42x = 113,274.38 × 47,628.50
4. Step 4: Simplify right side
   82,086.42x = 5,395,088,360.53
5. Step 5: Solve for x
   x = 5,395,088,360.53/82,086.42
6. Step 6: Final answer
   x = 65,724.49