Finding the Fourth Proportional to 142,049.03, 196,061.21 and 81,654.71

Step by Step Solution

1. Step 1: Write the proportion equation
   142,049.03 : 196,061.21 = 81,654.71 : x
2. Step 2: Convert to fraction form
   142,049.03/196,061.21 = 81,654.71/x
3. Step 3: Cross multiply
   142,049.03x = 196,061.21 × 81,654.71
4. Step 4: Simplify right side
   142,049.03x = 16,009,322,092.19
5. Step 5: Solve for x
   x = 16,009,322,092.19/142,049.03
6. Step 6: Final answer
   x = 112,702.79