Finding the Fourth Proportional to 84,583.49, 126,834.72 and 28,408.00

Step by Step Solution

1. Step 1: Write the proportion equation
   84,583.49 : 126,834.72 = 28,408.00 : x
2. Step 2: Convert to fraction form
   84,583.49/126,834.72 = 28,408.00/x
3. Step 3: Cross multiply
   84,583.49x = 126,834.72 × 28,408.00
4. Step 4: Simplify right side
   84,583.49x = 3,603,120,619.86
5. Step 5: Solve for x
   x = 3,603,120,619.86/84,583.49
6. Step 6: Final answer
   x = 42,598.39