Finding the Fourth Proportional to 50,615.13, 69,851.81 and 30,478.52

Step by Step Solution

1. Step 1: Write the proportion equation
   50,615.13 : 69,851.81 = 30,478.52 : x
2. Step 2: Convert to fraction form
   50,615.13/69,851.81 = 30,478.52/x
3. Step 3: Cross multiply
   50,615.13x = 69,851.81 × 30,478.52
4. Step 4: Simplify right side
   50,615.13x = 2,128,979,788.12
5. Step 5: Solve for x
   x = 2,128,979,788.12/50,615.13
6. Step 6: Final answer
   x = 42,062.12