Finding the Fourth Proportional to 49,078.81, 67,647.89 and 34,720.09

Step by Step Solution

1. Step 1: Write the proportion equation
   49,078.81 : 67,647.89 = 34,720.09 : x
2. Step 2: Convert to fraction form
   49,078.81/67,647.89 = 34,720.09/x
3. Step 3: Cross multiply
   49,078.81x = 67,647.89 × 34,720.09
4. Step 4: Simplify right side
   49,078.81x = 2,348,740,655.51
5. Step 5: Solve for x
   x = 2,348,740,655.51/49,078.81
6. Step 6: Final answer
   x = 47,856.51