Finding the Fourth Proportional to 142,141.01, 196,154.53 and 81,723.47

Step by Step Solution

1. Step 1: Write the proportion equation
   142,141.01 : 196,154.53 = 81,723.47 : x
2. Step 2: Convert to fraction form
   142,141.01/196,154.53 = 81,723.47/x
3. Step 3: Cross multiply
   142,141.01x = 196,154.53 × 81,723.47
4. Step 4: Simplify right side
   142,141.01x = 16,030,427,662.74
5. Step 5: Solve for x
   x = 16,030,427,662.74/142,141.01
6. Step 6: Final answer
   x = 112,778.35