Finding the Fourth Proportional to 50,830.96, 70,085.72 and 43,745.20

Step by Step Solution

1. Step 1: Write the proportion equation
   50,830.96 : 70,085.72 = 43,745.20 : x
2. Step 2: Convert to fraction form
   50,830.96/70,085.72 = 43,745.20/x
3. Step 3: Cross multiply
   50,830.96x = 70,085.72 × 43,745.20
4. Step 4: Simplify right side
   50,830.96x = 3,065,913,838.54
5. Step 5: Solve for x
   x = 3,065,913,838.54/50,830.96
6. Step 6: Final answer
   x = 60,315.88