Finding the Fourth Proportional to 72,300.66, 99,770.22 and 40,469.28

Step by Step Solution

1. Step 1: Write the proportion equation
   72,300.66 : 99,770.22 = 40,469.28 : x
2. Step 2: Convert to fraction form
   72,300.66/99,770.22 = 40,469.28/x
3. Step 3: Cross multiply
   72,300.66x = 99,770.22 × 40,469.28
4. Step 4: Simplify right side
   72,300.66x = 4,037,628,968.84
5. Step 5: Solve for x
   x = 4,037,628,968.84/72,300.66
6. Step 6: Final answer
   x = 55,844.98