Finding the Fourth Proportional to 83,078.55, 124,683.39 and 30,503.07

Step by Step Solution

1. Step 1: Write the proportion equation
   83,078.55 : 124,683.39 = 30,503.07 : x
2. Step 2: Convert to fraction form
   83,078.55/124,683.39 = 30,503.07/x
3. Step 3: Cross multiply
   83,078.55x = 124,683.39 × 30,503.07
4. Step 4: Simplify right side
   83,078.55x = 3,803,226,173.01
5. Step 5: Solve for x
   x = 3,803,226,173.01/83,078.55
6. Step 6: Final answer
   x = 45,778.68