Finding the Fourth Proportional to 142,645.14, 196,852.71 and 78,113.34

Step by Step Solution

1. Step 1: Write the proportion equation
   142,645.14 : 196,852.71 = 78,113.34 : x
2. Step 2: Convert to fraction form
   142,645.14/196,852.71 = 78,113.34/x
3. Step 3: Cross multiply
   142,645.14x = 196,852.71 × 78,113.34
4. Step 4: Simplify right side
   142,645.14x = 15,376,822,666.15
5. Step 5: Solve for x
   x = 15,376,822,666.15/142,645.14
6. Step 6: Final answer
   x = 107,797.73