Finding the Fourth Proportional to 13,020.12, 19,525.20 and 5,623.98

Step by Step Solution

1. Step 1: Write the proportion equation
   13,020.12 : 19,525.20 = 5,623.98 : x
2. Step 2: Convert to fraction form
   13,020.12/19,525.20 = 5,623.98/x
3. Step 3: Cross multiply
   13,020.12x = 19,525.20 × 5,623.98
4. Step 4: Simplify right side
   13,020.12x = 109,809,334.30
5. Step 5: Solve for x
   x = 109,809,334.30/13,020.12
6. Step 6: Final answer
   x = 8,433.82