Finding the Fourth Proportional to 129,969.01, 194,913.82 and 55,087.75

Step by Step Solution

1. Step 1: Write the proportion equation
   129,969.01 : 194,913.82 = 55,087.75 : x
2. Step 2: Convert to fraction form
   129,969.01/194,913.82 = 55,087.75/x
3. Step 3: Cross multiply
   129,969.01x = 194,913.82 × 55,087.75
4. Step 4: Simplify right side
   129,969.01x = 10,737,363,787.71
5. Step 5: Solve for x
   x = 10,737,363,787.71/129,969.01
6. Step 6: Final answer
   x = 82,614.80