Finding the Fourth Proportional to 21,075.01, 31,620.71 and 9,380.23

Step by Step Solution

1. Step 1: Write the proportion equation
   21,075.01 : 31,620.71 = 9,380.23 : x
2. Step 2: Convert to fraction form
   21,075.01/31,620.71 = 9,380.23/x
3. Step 3: Cross multiply
   21,075.01x = 31,620.71 × 9,380.23
4. Step 4: Simplify right side
   21,075.01x = 296,609,532.56
5. Step 5: Solve for x
   x = 296,609,532.56/21,075.01
6. Step 6: Final answer
   x = 14,073.99