Finding the Fourth Proportional to 142,300.93, 196,358.56 and 78,634.93

Step by Step Solution

1. Step 1: Write the proportion equation
   142,300.93 : 196,358.56 = 78,634.93 : x
2. Step 2: Convert to fraction form
   142,300.93/196,358.56 = 78,634.93/x
3. Step 3: Cross multiply
   142,300.93x = 196,358.56 × 78,634.93
4. Step 4: Simplify right side
   142,300.93x = 15,440,641,620.50
5. Step 5: Solve for x
   x = 15,440,641,620.50/142,300.93
6. Step 6: Final answer
   x = 108,506.96