Finding the Fourth Proportional to 80,433.37, 120,670.31 and 47,181.25

Step by Step Solution

1. Step 1: Write the proportion equation
   80,433.37 : 120,670.31 = 47,181.25 : x
2. Step 2: Convert to fraction form
   80,433.37/120,670.31 = 47,181.25/x
3. Step 3: Cross multiply
   80,433.37x = 120,670.31 × 47,181.25
4. Step 4: Simplify right side
   80,433.37x = 5,693,376,063.69
5. Step 5: Solve for x
   x = 5,693,376,063.69/80,433.37
6. Step 6: Final answer
   x = 70,783.76