Finding the Fourth Proportional to 53,760.56, 80,512.58 and 31,223.53

Step by Step Solution

1. Step 1: Write the proportion equation
   53,760.56 : 80,512.58 = 31,223.53 : x
2. Step 2: Convert to fraction form
   53,760.56/80,512.58 = 31,223.53/x
3. Step 3: Cross multiply
   53,760.56x = 80,512.58 × 31,223.53
4. Step 4: Simplify right side
   53,760.56x = 2,513,886,682.82
5. Step 5: Solve for x
   x = 2,513,886,682.82/53,760.56
6. Step 6: Final answer
   x = 46,760.80