Finding the Fourth Proportional to 72,251.56, 99,741.24 and 54,353.38

Step by Step Solution

1. Step 1: Write the proportion equation
   72,251.56 : 99,741.24 = 54,353.38 : x
2. Step 2: Convert to fraction form
   72,251.56/99,741.24 = 54,353.38/x
3. Step 3: Cross multiply
   72,251.56x = 99,741.24 × 54,353.38
4. Step 4: Simplify right side
   72,251.56x = 5,421,273,519.39
5. Step 5: Solve for x
   x = 5,421,273,519.39/72,251.56
6. Step 6: Final answer
   x = 75,033.31