Finding the Fourth Proportional to 142,580.82, 196,761.71 and 88,865.79

Step by Step Solution

1. Step 1: Write the proportion equation
   142,580.82 : 196,761.71 = 88,865.79 : x
2. Step 2: Convert to fraction form
   142,580.82/196,761.71 = 88,865.79/x
3. Step 3: Cross multiply
   142,580.82x = 196,761.71 × 88,865.79
4. Step 4: Simplify right side
   142,580.82x = 17,485,384,892.12
5. Step 5: Solve for x
   x = 17,485,384,892.12/142,580.82
6. Step 6: Final answer
   x = 122,634.90