Finding the Fourth Proportional to 82,745.28, 114,186.24 and 45,018.72

Step by Step Solution

1. Step 1: Write the proportion equation
   82,745.28 : 114,186.24 = 45,018.72 : x
2. Step 2: Convert to fraction form
   82,745.28/114,186.24 = 45,018.72/x
3. Step 3: Cross multiply
   82,745.28x = 114,186.24 × 45,018.72
4. Step 4: Simplify right side
   82,745.28x = 5,140,518,366.41
5. Step 5: Solve for x
   x = 5,140,518,366.41/82,745.28
6. Step 6: Final answer
   x = 62,124.61