Finding the Fourth Proportional to 50,145.84, 69,184.17 and 28,620.15

Step by Step Solution

1. Step 1: Write the proportion equation
   50,145.84 : 69,184.17 = 28,620.15 : x
2. Step 2: Convert to fraction form
   50,145.84/69,184.17 = 28,620.15/x
3. Step 3: Cross multiply
   50,145.84x = 69,184.17 × 28,620.15
4. Step 4: Simplify right side
   50,145.84x = 1,980,061,323.03
5. Step 5: Solve for x
   x = 1,980,061,323.03/50,145.84
6. Step 6: Final answer
   x = 39,486.05