Finding the Fourth Proportional to 62,978.56, 86,910.42 and 34,684

Step by Step Solution

1. Step 1: Write the proportion equation
   62,978.56 : 86,910.42 = 34,684 : x
2. Step 2: Convert to fraction form
   62,978.56/86,910.42 = 34,684/x
3. Step 3: Cross multiply
   62,978.56x = 86,910.42 × 34,684
4. Step 4: Simplify right side
   62,978.56x = 3,014,401,007.28
5. Step 5: Solve for x
   x = 3,014,401,007.28/62,978.56
6. Step 6: Final answer
   x = 47,863.92