Finding the Fourth Proportional to 19,002.09, 26,222.89 and 10,620.21

Step by Step Solution

1. Step 1: Write the proportion equation
   19,002.09 : 26,222.89 = 10,620.21 : x
2. Step 2: Convert to fraction form
   19,002.09/26,222.89 = 10,620.21/x
3. Step 3: Cross multiply
   19,002.09x = 26,222.89 × 10,620.21
4. Step 4: Simplify right side
   19,002.09x = 278,492,690.31
5. Step 5: Solve for x
   x = 278,492,690.31/19,002.09
6. Step 6: Final answer
   x = 14,655.89