Finding the Fourth Proportional to 53,900.56, 80,801.16 and 49,472.56

Step by Step Solution

1. Step 1: Write the proportion equation
   53,900.56 : 80,801.16 = 49,472.56 : x
2. Step 2: Convert to fraction form
   53,900.56/80,801.16 = 49,472.56/x
3. Step 3: Cross multiply
   53,900.56x = 80,801.16 × 49,472.56
4. Step 4: Simplify right side
   53,900.56x = 3,997,440,236.17
5. Step 5: Solve for x
   x = 3,997,440,236.17/53,900.56
6. Step 6: Final answer
   x = 74,163.24