Finding the Fourth Proportional to 10,555.16, 15,832.71 and 3,159.62

Step by Step Solution

1. Step 1: Write the proportion equation
   10,555.16 : 15,832.71 = 3,159.62 : x
2. Step 2: Convert to fraction form
   10,555.16/15,832.71 = 3,159.62/x
3. Step 3: Cross multiply
   10,555.16x = 15,832.71 × 3,159.62
4. Step 4: Simplify right side
   10,555.16x = 50,025,347.17
5. Step 5: Solve for x
   x = 50,025,347.17/10,555.16
6. Step 6: Final answer
   x = 4,739.42