Finding the Fourth Proportional to 50,787.50, 70,086.96 and 28,125.99

Step by Step Solution

1. Step 1: Write the proportion equation
   50,787.50 : 70,086.96 = 28,125.99 : x
2. Step 2: Convert to fraction form
   50,787.50/70,086.96 = 28,125.99/x
3. Step 3: Cross multiply
   50,787.50x = 70,086.96 × 28,125.99
4. Step 4: Simplify right side
   50,787.50x = 1,971,265,136.09
5. Step 5: Solve for x
   x = 1,971,265,136.09/50,787.50
6. Step 6: Final answer
   x = 38,813.99