Finding the Fourth Proportional to 20,300.12, 30,446.59 and 5,510.19

Step by Step Solution

1. Step 1: Write the proportion equation
   20,300.12 : 30,446.59 = 5,510.19 : x
2. Step 2: Convert to fraction form
   20,300.12/30,446.59 = 5,510.19/x
3. Step 3: Cross multiply
   20,300.12x = 30,446.59 × 5,510.19
4. Step 4: Simplify right side
   20,300.12x = 167,766,495.75
5. Step 5: Solve for x
   x = 167,766,495.75/20,300.12
6. Step 6: Final answer
   x = 8,264.31