Finding the Fourth Proportional to 50,646.78, 69,894.99 and 30,509.96

Step by Step Solution

1. Step 1: Write the proportion equation
   50,646.78 : 69,894.99 = 30,509.96 : x
2. Step 2: Convert to fraction form
   50,646.78/69,894.99 = 30,509.96/x
3. Step 3: Cross multiply
   50,646.78x = 69,894.99 × 30,509.96
4. Step 4: Simplify right side
   50,646.78x = 2,132,492,999.63
5. Step 5: Solve for x
   x = 2,132,492,999.63/50,646.78
6. Step 6: Final answer
   x = 42,105.20