Finding the Fourth Proportional to 12,952.52, 19,428.76 and 5,159.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,952.52 : 19,428.76 = 5,159.52 : x
2. Step 2: Convert to fraction form
   12,952.52/19,428.76 = 5,159.52/x
3. Step 3: Cross multiply
   12,952.52x = 19,428.76 × 5,159.52
4. Step 4: Simplify right side
   12,952.52x = 100,243,075.80
5. Step 5: Solve for x
   x = 100,243,075.80/12,952.52
6. Step 6: Final answer
   x = 7,739.27