Finding the Fourth Proportional to 10,871.45, 14,999 and 7,513.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,871.45 : 14,999 = 7,513.05 : x
2. Step 2: Convert to fraction form
   10,871.45/14,999 = 7,513.05/x
3. Step 3: Cross multiply
   10,871.45x = 14,999 × 7,513.05
4. Step 4: Simplify right side
   10,871.45x = 112,688,236.95
5. Step 5: Solve for x
   x = 112,688,236.95/10,871.45
6. Step 6: Final answer
   x = 10,365.52