Finding the Fourth Proportional to 72,383.56, 108,558.18 and 40,807.60

Step by Step Solution

1. Step 1: Write the proportion equation
   72,383.56 : 108,558.18 = 40,807.60 : x
2. Step 2: Convert to fraction form
   72,383.56/108,558.18 = 40,807.60/x
3. Step 3: Cross multiply
   72,383.56x = 108,558.18 × 40,807.60
4. Step 4: Simplify right side
   72,383.56x = 4,429,998,786.17
5. Step 5: Solve for x
   x = 4,429,998,786.17/72,383.56
6. Step 6: Final answer
   x = 61,201.73