Finding the Fourth Proportional to 71,933.56, 99,345.77 and 54,754.54

Step by Step Solution

1. Step 1: Write the proportion equation
   71,933.56 : 99,345.77 = 54,754.54 : x
2. Step 2: Convert to fraction form
   71,933.56/99,345.77 = 54,754.54/x
3. Step 3: Cross multiply
   71,933.56x = 99,345.77 × 54,754.54
4. Step 4: Simplify right side
   71,933.56x = 5,439,631,663.52
5. Step 5: Solve for x
   x = 5,439,631,663.52/71,933.56
6. Step 6: Final answer
   x = 75,620.22