Finding the Fourth Proportional to 13,105.80, 19,627.41 and 7,547.48

Step by Step Solution

1. Step 1: Write the proportion equation
   13,105.80 : 19,627.41 = 7,547.48 : x
2. Step 2: Convert to fraction form
   13,105.80/19,627.41 = 7,547.48/x
3. Step 3: Cross multiply
   13,105.80x = 19,627.41 × 7,547.48
4. Step 4: Simplify right side
   13,105.80x = 148,137,488.20
5. Step 5: Solve for x
   x = 148,137,488.20/13,105.80
6. Step 6: Final answer
   x = 11,303.20