Finding the Fourth Proportional to 142,300.44, 196,366.86 and 78,634.13

Step by Step Solution

1. Step 1: Write the proportion equation
   142,300.44 : 196,366.86 = 78,634.13 : x
2. Step 2: Convert to fraction form
   142,300.44/196,366.86 = 78,634.13/x
3. Step 3: Cross multiply
   142,300.44x = 196,366.86 × 78,634.13
4. Step 4: Simplify right side
   142,300.44x = 15,441,137,196.93
5. Step 5: Solve for x
   x = 15,441,137,196.93/142,300.44
6. Step 6: Final answer
   x = 108,510.82