Finding the Fourth Proportional to 142,269.01, 196,335.19 and 78,610.91

Step by Step Solution

1. Step 1: Write the proportion equation
   142,269.01 : 196,335.19 = 78,610.91 : x
2. Step 2: Convert to fraction form
   142,269.01/196,335.19 = 78,610.91/x
3. Step 3: Cross multiply
   142,269.01x = 196,335.19 × 78,610.91
4. Step 4: Simplify right side
   142,269.01x = 15,434,087,067.51
5. Step 5: Solve for x
   x = 15,434,087,067.51/142,269.01
6. Step 6: Final answer
   x = 108,485.24