Finding the Fourth Proportional to 82,478.14, 123,693.99 and 40,335.46

Step by Step Solution

1. Step 1: Write the proportion equation
   82,478.14 : 123,693.99 = 40,335.46 : x
2. Step 2: Convert to fraction form
   82,478.14/123,693.99 = 40,335.46/x
3. Step 3: Cross multiply
   82,478.14x = 123,693.99 × 40,335.46
4. Step 4: Simplify right side
   82,478.14x = 4,989,253,985.89
5. Step 5: Solve for x
   x = 4,989,253,985.89/82,478.14
6. Step 6: Final answer
   x = 60,491.83