Finding the Fourth Proportional to 72,127.94, 99,534.72 and 40,297.08

Step by Step Solution

1. Step 1: Write the proportion equation
   72,127.94 : 99,534.72 = 40,297.08 : x
2. Step 2: Convert to fraction form
   72,127.94/99,534.72 = 40,297.08/x
3. Step 3: Cross multiply
   72,127.94x = 99,534.72 × 40,297.08
4. Step 4: Simplify right side
   72,127.94x = 4,010,958,076.94
5. Step 5: Solve for x
   x = 4,010,958,076.94/72,127.94
6. Step 6: Final answer
   x = 55,608.94