Finding the Fourth Proportional to 142,859.84, 197,166.61 and 88,429.46

Step by Step Solution

1. Step 1: Write the proportion equation
   142,859.84 : 197,166.61 = 88,429.46 : x
2. Step 2: Convert to fraction form
   142,859.84/197,166.61 = 88,429.46/x
3. Step 3: Cross multiply
   142,859.84x = 197,166.61 × 88,429.46
4. Step 4: Simplify right side
   142,859.84x = 17,435,335,977.03
5. Step 5: Solve for x
   x = 17,435,335,977.03/142,859.84
6. Step 6: Final answer
   x = 122,045.05