Finding the Fourth Proportional to 13,072.80, 19,597.32 and 5,276.28

Step by Step Solution

1. Step 1: Write the proportion equation
   13,072.80 : 19,597.32 = 5,276.28 : x
2. Step 2: Convert to fraction form
   13,072.80/19,597.32 = 5,276.28/x
3. Step 3: Cross multiply
   13,072.80x = 19,597.32 × 5,276.28
4. Step 4: Simplify right side
   13,072.80x = 103,400,947.57
5. Step 5: Solve for x
   x = 103,400,947.57/13,072.80
6. Step 6: Final answer
   x = 7,909.63