Finding the Fourth Proportional to 129,419.98, 194,199.73 and 54,591.98

Step by Step Solution

1. Step 1: Write the proportion equation
   129,419.98 : 194,199.73 = 54,591.98 : x
2. Step 2: Convert to fraction form
   129,419.98/194,199.73 = 54,591.98/x
3. Step 3: Cross multiply
   129,419.98x = 194,199.73 × 54,591.98
4. Step 4: Simplify right side
   129,419.98x = 10,601,746,668.69
5. Step 5: Solve for x
   x = 10,601,746,668.69/129,419.98
6. Step 6: Final answer
   x = 81,917.39