Finding the Fourth Proportional to 72,313.16, 99,791.12 and 40,044.72

Step by Step Solution

1. Step 1: Write the proportion equation
   72,313.16 : 99,791.12 = 40,044.72 : x
2. Step 2: Convert to fraction form
   72,313.16/99,791.12 = 40,044.72/x
3. Step 3: Cross multiply
   72,313.16x = 99,791.12 × 40,044.72
4. Step 4: Simplify right side
   72,313.16x = 3,996,107,458.89
5. Step 5: Solve for x
   x = 3,996,107,458.89/72,313.16
6. Step 6: Final answer
   x = 55,261.14