Finding the Fourth Proportional to 83,617.60, 115,383.60 and 47,323.12

Step by Step Solution

1. Step 1: Write the proportion equation
   83,617.60 : 115,383.60 = 47,323.12 : x
2. Step 2: Convert to fraction form
   83,617.60/115,383.60 = 47,323.12/x
3. Step 3: Cross multiply
   83,617.60x = 115,383.60 × 47,323.12
4. Step 4: Simplify right side
   83,617.60x = 5,460,311,948.83
5. Step 5: Solve for x
   x = 5,460,311,948.83/83,617.60
6. Step 6: Final answer
   x = 65,300.99