Finding the Fourth Proportional to 10,159.55, 15,241.62 and 3,585.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,159.55 : 15,241.62 = 3,585.78 : x
2. Step 2: Convert to fraction form
   10,159.55/15,241.62 = 3,585.78/x
3. Step 3: Cross multiply
   10,159.55x = 15,241.62 × 3,585.78
4. Step 4: Simplify right side
   10,159.55x = 54,653,096.16
5. Step 5: Solve for x
   x = 54,653,096.16/10,159.55
6. Step 6: Final answer
   x = 5,379.48