Finding the Fourth Proportional to 102,968.71, 142,054.59 and 62,650.15

Step by Step Solution

1. Step 1: Write the proportion equation
   102,968.71 : 142,054.59 = 62,650.15 : x
2. Step 2: Convert to fraction form
   102,968.71/142,054.59 = 62,650.15/x
3. Step 3: Cross multiply
   102,968.71x = 142,054.59 × 62,650.15
4. Step 4: Simplify right side
   102,968.71x = 8,899,741,016.55
5. Step 5: Solve for x
   x = 8,899,741,016.55/102,968.71
6. Step 6: Final answer
   x = 86,431.51