Finding the Fourth Proportional to 19,009.05, 28,515.17 and 4,969.05

Step by Step Solution

1. Step 1: Write the proportion equation
   19,009.05 : 28,515.17 = 4,969.05 : x
2. Step 2: Convert to fraction form
   19,009.05/28,515.17 = 4,969.05/x
3. Step 3: Cross multiply
   19,009.05x = 28,515.17 × 4,969.05
4. Step 4: Simplify right side
   19,009.05x = 141,693,305.49
5. Step 5: Solve for x
   x = 141,693,305.49/19,009.05
6. Step 6: Final answer
   x = 7,453.99