Finding the Fourth Proportional to 10,443.18, 15,656.55 and 5,180.04

Step by Step Solution

1. Step 1: Write the proportion equation
   10,443.18 : 15,656.55 = 5,180.04 : x
2. Step 2: Convert to fraction form
   10,443.18/15,656.55 = 5,180.04/x
3. Step 3: Cross multiply
   10,443.18x = 15,656.55 × 5,180.04
4. Step 4: Simplify right side
   10,443.18x = 81,101,555.26
5. Step 5: Solve for x
   x = 81,101,555.26/10,443.18
6. Step 6: Final answer
   x = 7,765.98