Finding the Fourth Proportional to 82,870.96, 114,361.91 and 45,145.21

Step by Step Solution

1. Step 1: Write the proportion equation
   82,870.96 : 114,361.91 = 45,145.21 : x
2. Step 2: Convert to fraction form
   82,870.96/114,361.91 = 45,145.21/x
3. Step 3: Cross multiply
   82,870.96x = 114,361.91 × 45,145.21
4. Step 4: Simplify right side
   82,870.96x = 5,162,892,442.95
5. Step 5: Solve for x
   x = 5,162,892,442.95/82,870.96
6. Step 6: Final answer
   x = 62,300.38