Finding the Fourth Proportional to 60,872.50, 91,323.33 and 19,319.50

Step by Step Solution

1. Step 1: Write the proportion equation
   60,872.50 : 91,323.33 = 19,319.50 : x
2. Step 2: Convert to fraction form
   60,872.50/91,323.33 = 19,319.50/x
3. Step 3: Cross multiply
   60,872.50x = 91,323.33 × 19,319.50
4. Step 4: Simplify right side
   60,872.50x = 1,764,321,073.94
5. Step 5: Solve for x
   x = 1,764,321,073.94/60,872.50
6. Step 6: Final answer
   x = 28,983.88