Finding the Fourth Proportional to 49,805.10, 69,902.10 and 49,805.10

Step by Step Solution

1. Step 1: Write the proportion equation
   49,805.10 : 69,902.10 = 49,805.10 : x
2. Step 2: Convert to fraction form
   49,805.10/69,902.10 = 49,805.10/x
3. Step 3: Cross multiply
   49,805.10x = 69,902.10 × 49,805.10
4. Step 4: Simplify right side
   49,805.10x = 3,481,481,080.71
5. Step 5: Solve for x
   x = 3,481,481,080.71/49,805.10
6. Step 6: Final answer
   x = 69,902.10