Finding the Fourth Proportional to 13,300.10, 19,949.23 and 7,379.78

Step by Step Solution

1. Step 1: Write the proportion equation
   13,300.10 : 19,949.23 = 7,379.78 : x
2. Step 2: Convert to fraction form
   13,300.10/19,949.23 = 7,379.78/x
3. Step 3: Cross multiply
   13,300.10x = 19,949.23 × 7,379.78
4. Step 4: Simplify right side
   13,300.10x = 147,220,928.57
5. Step 5: Solve for x
   x = 147,220,928.57/13,300.10
6. Step 6: Final answer
   x = 11,069.16