Finding the Fourth Proportional to 10,950.87, 16,428.42 and 3,928.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,950.87 : 16,428.42 = 3,928.98 : x
2. Step 2: Convert to fraction form
   10,950.87/16,428.42 = 3,928.98/x
3. Step 3: Cross multiply
   10,950.87x = 16,428.42 × 3,928.98
4. Step 4: Simplify right side
   10,950.87x = 64,546,933.61
5. Step 5: Solve for x
   x = 64,546,933.61/10,950.87
6. Step 6: Final answer
   x = 5,894.23