Finding the Fourth Proportional to 82,817.87, 124,137.50 and 40,648.86

Step by Step Solution

1. Step 1: Write the proportion equation
   82,817.87 : 124,137.50 = 40,648.86 : x
2. Step 2: Convert to fraction form
   82,817.87/124,137.50 = 40,648.86/x
3. Step 3: Cross multiply
   82,817.87x = 124,137.50 × 40,648.86
4. Step 4: Simplify right side
   82,817.87x = 5,046,047,655.01
5. Step 5: Solve for x
   x = 5,046,047,655.01/82,817.87
6. Step 6: Final answer
   x = 60,929.46