Finding the Fourth Proportional to 50,045.58, 69,087.90 and 28,820.75

Step by Step Solution

1. Step 1: Write the proportion equation
   50,045.58 : 69,087.90 = 28,820.75 : x
2. Step 2: Convert to fraction form
   50,045.58/69,087.90 = 28,820.75/x
3. Step 3: Cross multiply
   50,045.58x = 69,087.90 × 28,820.75
4. Step 4: Simplify right side
   50,045.58x = 1,991,164,856.56
5. Step 5: Solve for x
   x = 1,991,164,856.56/50,045.58
6. Step 6: Final answer
   x = 39,787.03