Finding the Fourth Proportional to 10,086.94, 15,144.45 and 5,159.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,086.94 : 15,144.45 = 5,159.98 : x
2. Step 2: Convert to fraction form
   10,086.94/15,144.45 = 5,159.98/x
3. Step 3: Cross multiply
   10,086.94x = 15,144.45 × 5,159.98
4. Step 4: Simplify right side
   10,086.94x = 78,145,059.11
5. Step 5: Solve for x
   x = 78,145,059.11/10,086.94
6. Step 6: Final answer
   x = 7,747.15