Finding the Fourth Proportional to 49,087.20, 71,038.20 and 49,087.20

Step by Step Solution

1. Step 1: Write the proportion equation
   49,087.20 : 71,038.20 = 49,087.20 : x
2. Step 2: Convert to fraction form
   49,087.20/71,038.20 = 49,087.20/x
3. Step 3: Cross multiply
   49,087.20x = 71,038.20 × 49,087.20
4. Step 4: Simplify right side
   49,087.20x = 3,487,066,331.04
5. Step 5: Solve for x
   x = 3,487,066,331.04/49,087.20
6. Step 6: Final answer
   x = 71,038.20