Finding the Fourth Proportional to 142,049.56, 196,061.95 and 81,655.24

Step by Step Solution

1. Step 1: Write the proportion equation
   142,049.56 : 196,061.95 = 81,655.24 : x
2. Step 2: Convert to fraction form
   142,049.56/196,061.95 = 81,655.24/x
3. Step 3: Cross multiply
   142,049.56x = 196,061.95 × 81,655.24
4. Step 4: Simplify right side
   142,049.56x = 16,009,485,582.12
5. Step 5: Solve for x
   x = 16,009,485,582.12/142,049.56
6. Step 6: Final answer
   x = 112,703.52