Finding the Fourth Proportional to 142,532.52, 196,691.94 and 78,866.52

Step by Step Solution

1. Step 1: Write the proportion equation
   142,532.52 : 196,691.94 = 78,866.52 : x
2. Step 2: Convert to fraction form
   142,532.52/196,691.94 = 78,866.52/x
3. Step 3: Cross multiply
   142,532.52x = 196,691.94 × 78,866.52
4. Step 4: Simplify right side
   142,532.52x = 15,512,408,819.85
5. Step 5: Solve for x
   x = 15,512,408,819.85/142,532.52
6. Step 6: Final answer
   x = 108,834.17