Finding the Fourth Proportional to 142,616.96, 196,812.96 and 78,955.82

Step by Step Solution

1. Step 1: Write the proportion equation
   142,616.96 : 196,812.96 = 78,955.82 : x
2. Step 2: Convert to fraction form
   142,616.96/196,812.96 = 78,955.82/x
3. Step 3: Cross multiply
   142,616.96x = 196,812.96 × 78,955.82
4. Step 4: Simplify right side
   142,616.96x = 15,539,528,643.43
5. Step 5: Solve for x
   x = 15,539,528,643.43/142,616.96
6. Step 6: Final answer
   x = 108,959.89