Finding the Fourth Proportional to 62,776.12, 86,628.72 and 34,480.12

Step by Step Solution

1. Step 1: Write the proportion equation
   62,776.12 : 86,628.72 = 34,480.12 : x
2. Step 2: Convert to fraction form
   62,776.12/86,628.72 = 34,480.12/x
3. Step 3: Cross multiply
   62,776.12x = 86,628.72 × 34,480.12
4. Step 4: Simplify right side
   62,776.12x = 2,986,968,661.05
5. Step 5: Solve for x
   x = 2,986,968,661.05/62,776.12
6. Step 6: Final answer
   x = 47,581.29