Finding the Fourth Proportional to 82,690.76, 124,059.69 and 40,583.49

Step by Step Solution

1. Step 1: Write the proportion equation
   82,690.76 : 124,059.69 = 40,583.49 : x
2. Step 2: Convert to fraction form
   82,690.76/124,059.69 = 40,583.49/x
3. Step 3: Cross multiply
   82,690.76x = 124,059.69 × 40,583.49
4. Step 4: Simplify right side
   82,690.76x = 5,034,775,188.52
5. Step 5: Solve for x
   x = 5,034,775,188.52/82,690.76
6. Step 6: Final answer
   x = 60,886.80