Finding the Fourth Proportional to 10,087.94, 15,145.95 and 5,160.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,087.94 : 15,145.95 = 5,160.98 : x
2. Step 2: Convert to fraction form
   10,087.94/15,145.95 = 5,160.98/x
3. Step 3: Cross multiply
   10,087.94x = 15,145.95 × 5,160.98
4. Step 4: Simplify right side
   10,087.94x = 78,167,945.03
5. Step 5: Solve for x
   x = 78,167,945.03/10,087.94
6. Step 6: Final answer
   x = 7,748.65