Finding the Fourth Proportional to 142,132.05, 196,134.35 and 88,415.37

Step by Step Solution

1. Step 1: Write the proportion equation
   142,132.05 : 196,134.35 = 88,415.37 : x
2. Step 2: Convert to fraction form
   142,132.05/196,134.35 = 88,415.37/x
3. Step 3: Cross multiply
   142,132.05x = 196,134.35 × 88,415.37
4. Step 4: Simplify right side
   142,132.05x = 17,341,290,682.88
5. Step 5: Solve for x
   x = 17,341,290,682.88/142,132.05
6. Step 6: Final answer
   x = 122,008.31