Finding the Fourth Proportional to 142,304.76, 196,378.76 and 78,641.19

Step by Step Solution

1. Step 1: Write the proportion equation
   142,304.76 : 196,378.76 = 78,641.19 : x
2. Step 2: Convert to fraction form
   142,304.76/196,378.76 = 78,641.19/x
3. Step 3: Cross multiply
   142,304.76x = 196,378.76 × 78,641.19
4. Step 4: Simplify right side
   142,304.76x = 15,443,459,573.73
5. Step 5: Solve for x
   x = 15,443,459,573.73/142,304.76
6. Step 6: Final answer
   x = 108,523.84