Finding the Fourth Proportional to 129,667.66, 194,499.55 and 79,081.54

Step by Step Solution

1. Step 1: Write the proportion equation
   129,667.66 : 194,499.55 = 79,081.54 : x
2. Step 2: Convert to fraction form
   129,667.66/194,499.55 = 79,081.54/x
3. Step 3: Cross multiply
   129,667.66x = 194,499.55 × 79,081.54
4. Step 4: Simplify right side
   129,667.66x = 15,381,323,943.31
5. Step 5: Solve for x
   x = 15,381,323,943.31/129,667.66
6. Step 6: Final answer
   x = 118,621.13