Finding the Fourth Proportional to 53,610.72, 80,896.18 and 51,452.88

Step by Step Solution

1. Step 1: Write the proportion equation
   53,610.72 : 80,896.18 = 51,452.88 : x
2. Step 2: Convert to fraction form
   53,610.72/80,896.18 = 51,452.88/x
3. Step 3: Cross multiply
   53,610.72x = 80,896.18 × 51,452.88
4. Step 4: Simplify right side
   53,610.72x = 4,162,341,442.00
5. Step 5: Solve for x
   x = 4,162,341,442.00/53,610.72
6. Step 6: Final answer
   x = 77,640.10