Finding the Fourth Proportional to 142,077.12, 196,058.76 and 88,360.62

Step by Step Solution

1. Step 1: Write the proportion equation
   142,077.12 : 196,058.76 = 88,360.62 : x
2. Step 2: Convert to fraction form
   142,077.12/196,058.76 = 88,360.62/x
3. Step 3: Cross multiply
   142,077.12x = 196,058.76 × 88,360.62
4. Step 4: Simplify right side
   142,077.12x = 17,323,873,590.03
5. Step 5: Solve for x
   x = 17,323,873,590.03/142,077.12
6. Step 6: Final answer
   x = 121,932.89