Finding the Fourth Proportional to 50,620.47, 69,937.61 and 43,145.79

Step by Step Solution

1. Step 1: Write the proportion equation
   50,620.47 : 69,937.61 = 43,145.79 : x
2. Step 2: Convert to fraction form
   50,620.47/69,937.61 = 43,145.79/x
3. Step 3: Cross multiply
   50,620.47x = 69,937.61 × 43,145.79
4. Step 4: Simplify right side
   50,620.47x = 3,017,513,218.43
5. Step 5: Solve for x
   x = 3,017,513,218.43/50,620.47
6. Step 6: Final answer
   x = 59,610.53