Finding the Fourth Proportional to 14,439.83, 19,928.69 and 8,775.50

Step by Step Solution

1. Step 1: Write the proportion equation
   14,439.83 : 19,928.69 = 8,775.50 : x
2. Step 2: Convert to fraction form
   14,439.83/19,928.69 = 8,775.50/x
3. Step 3: Cross multiply
   14,439.83x = 19,928.69 × 8,775.50
4. Step 4: Simplify right side
   14,439.83x = 174,884,075.57
5. Step 5: Solve for x
   x = 174,884,075.57/14,439.83
6. Step 6: Final answer
   x = 12,111.23