Finding the Fourth Proportional to 19,300.15, 26,634.69 and 10,802.20

Step by Step Solution

1. Step 1: Write the proportion equation
   19,300.15 : 26,634.69 = 10,802.20 : x
2. Step 2: Convert to fraction form
   19,300.15/26,634.69 = 10,802.20/x
3. Step 3: Cross multiply
   19,300.15x = 26,634.69 × 10,802.20
4. Step 4: Simplify right side
   19,300.15x = 287,713,194.31
5. Step 5: Solve for x
   x = 287,713,194.31/19,300.15
6. Step 6: Final answer
   x = 14,907.30