Finding the Fourth Proportional to 142,667.18, 196,886.90 and 79,004.97

Step by Step Solution

1. Step 1: Write the proportion equation
   142,667.18 : 196,886.90 = 79,004.97 : x
2. Step 2: Convert to fraction form
   142,667.18/196,886.90 = 79,004.97/x
3. Step 3: Cross multiply
   142,667.18x = 196,886.90 × 79,004.97
4. Step 4: Simplify right side
   142,667.18x = 15,555,043,232.87
5. Step 5: Solve for x
   x = 15,555,043,232.87/142,667.18
6. Step 6: Final answer
   x = 109,030.29