Finding the Fourth Proportional to 70,287.78, 105,315.02 and 49,467.54

Step by Step Solution

1. Step 1: Write the proportion equation
   70,287.78 : 105,315.02 = 49,467.54 : x
2. Step 2: Convert to fraction form
   70,287.78/105,315.02 = 49,467.54/x
3. Step 3: Cross multiply
   70,287.78x = 105,315.02 × 49,467.54
4. Step 4: Simplify right side
   70,287.78x = 5,209,674,561.54
5. Step 5: Solve for x
   x = 5,209,674,561.54/70,287.78
6. Step 6: Final answer
   x = 74,119.21