Finding the Fourth Proportional to 82,870.56, 114,361.20 and 45,144.72

Step by Step Solution

1. Step 1: Write the proportion equation
   82,870.56 : 114,361.20 = 45,144.72 : x
2. Step 2: Convert to fraction form
   82,870.56/114,361.20 = 45,144.72/x
3. Step 3: Cross multiply
   82,870.56x = 114,361.20 × 45,144.72
4. Step 4: Simplify right side
   82,870.56x = 5,162,804,352.86
5. Step 5: Solve for x
   x = 5,162,804,352.86/82,870.56
6. Step 6: Final answer
   x = 62,299.62