Finding the Fourth Proportional to 50,774.31, 70,046.48 and 30,619.99

Step by Step Solution

1. Step 1: Write the proportion equation
   50,774.31 : 70,046.48 = 30,619.99 : x
2. Step 2: Convert to fraction form
   50,774.31/70,046.48 = 30,619.99/x
3. Step 3: Cross multiply
   50,774.31x = 70,046.48 × 30,619.99
4. Step 4: Simplify right side
   50,774.31x = 2,144,822,517.14
5. Step 5: Solve for x
   x = 2,144,822,517.14/50,774.31
6. Step 6: Final answer
   x = 42,242.28