Finding the Fourth Proportional to 50,615.47, 69,930.71 and 43,140.79

Step by Step Solution

1. Step 1: Write the proportion equation
   50,615.47 : 69,930.71 = 43,140.79 : x
2. Step 2: Convert to fraction form
   50,615.47/69,930.71 = 43,140.79/x
3. Step 3: Cross multiply
   50,615.47x = 69,930.71 × 43,140.79
4. Step 4: Simplify right side
   50,615.47x = 3,016,866,074.66
5. Step 5: Solve for x
   x = 3,016,866,074.66/50,615.47
6. Step 6: Final answer
   x = 59,603.64