Finding the Fourth Proportional to 72,383.12, 99,786.84 and 59,591.60

Step by Step Solution

1. Step 1: Write the proportion equation
   72,383.12 : 99,786.84 = 59,591.60 : x
2. Step 2: Convert to fraction form
   72,383.12/99,786.84 = 59,591.60/x
3. Step 3: Cross multiply
   72,383.12x = 99,786.84 × 59,591.60
4. Step 4: Simplify right side
   72,383.12x = 5,946,457,454.54
5. Step 5: Solve for x
   x = 5,946,457,454.54/72,383.12
6. Step 6: Final answer
   x = 82,152.54