Finding the Fourth Proportional to 129,912.04, 194,716.72 and 55,007.29

Step by Step Solution

1. Step 1: Write the proportion equation
   129,912.04 : 194,716.72 = 55,007.29 : x
2. Step 2: Convert to fraction form
   129,912.04/194,716.72 = 55,007.29/x
3. Step 3: Cross multiply
   129,912.04x = 194,716.72 × 55,007.29
4. Step 4: Simplify right side
   129,912.04x = 10,710,839,084.89
5. Step 5: Solve for x
   x = 10,710,839,084.89/129,912.04
6. Step 6: Final answer
   x = 82,446.85