Finding the Fourth Proportional to 14,428.50, 19,911.37 and 7,804.50

Step by Step Solution

1. Step 1: Write the proportion equation
   14,428.50 : 19,911.37 = 7,804.50 : x
2. Step 2: Convert to fraction form
   14,428.50/19,911.37 = 7,804.50/x
3. Step 3: Cross multiply
   14,428.50x = 19,911.37 × 7,804.50
4. Step 4: Simplify right side
   14,428.50x = 155,398,287.17
5. Step 5: Solve for x
   x = 155,398,287.17/14,428.50
6. Step 6: Final answer
   x = 10,770.23