Finding the Fourth Proportional to 142,071.69, 196,084.36 and 84,714.72

Step by Step Solution

1. Step 1: Write the proportion equation
   142,071.69 : 196,084.36 = 84,714.72 : x
2. Step 2: Convert to fraction form
   142,071.69/196,084.36 = 84,714.72/x
3. Step 3: Cross multiply
   142,071.69x = 196,084.36 × 84,714.72
4. Step 4: Simplify right side
   142,071.69x = 16,611,231,653.78
5. Step 5: Solve for x
   x = 16,611,231,653.78/142,071.69
6. Step 6: Final answer
   x = 116,921.48