Finding the Fourth Proportional to 142,597.53, 196,780.59 and 81,342.29

Step by Step Solution

1. Step 1: Write the proportion equation
   142,597.53 : 196,780.59 = 81,342.29 : x
2. Step 2: Convert to fraction form
   142,597.53/196,780.59 = 81,342.29/x
3. Step 3: Cross multiply
   142,597.53x = 196,780.59 × 81,342.29
4. Step 4: Simplify right side
   142,597.53x = 16,006,584,310.10
5. Step 5: Solve for x
   x = 16,006,584,310.10/142,597.53
6. Step 6: Final answer
   x = 112,250.08