Finding the Fourth Proportional to 142,094.42, 196,096.84 and 81,684.62

Step by Step Solution

1. Step 1: Write the proportion equation
   142,094.42 : 196,096.84 = 81,684.62 : x
2. Step 2: Convert to fraction form
   142,094.42/196,096.84 = 81,684.62/x
3. Step 3: Cross multiply
   142,094.42x = 196,096.84 × 81,684.62
4. Step 4: Simplify right side
   142,094.42x = 16,018,095,858.60
5. Step 5: Solve for x
   x = 16,018,095,858.60/142,094.42
6. Step 6: Final answer
   x = 112,728.54