Finding the Fourth Proportional to 142,376.82, 196,483.98 and 78,718.73

Step by Step Solution

1. Step 1: Write the proportion equation
   142,376.82 : 196,483.98 = 78,718.73 : x
2. Step 2: Convert to fraction form
   142,376.82/196,483.98 = 78,718.73/x
3. Step 3: Cross multiply
   142,376.82x = 196,483.98 × 78,718.73
4. Step 4: Simplify right side
   142,376.82x = 15,466,968,388.53
5. Step 5: Solve for x
   x = 15,466,968,388.53/142,376.82
6. Step 6: Final answer
   x = 108,634.03