Finding the Fourth Proportional to 10,075.52, 15,114.24 and 5,143.04

Step by Step Solution

1. Step 1: Write the proportion equation
   10,075.52 : 15,114.24 = 5,143.04 : x
2. Step 2: Convert to fraction form
   10,075.52/15,114.24 = 5,143.04/x
3. Step 3: Cross multiply
   10,075.52x = 15,114.24 × 5,143.04
4. Step 4: Simplify right side
   10,075.52x = 77,733,140.89
5. Step 5: Solve for x
   x = 77,733,140.89/10,075.52
6. Step 6: Final answer
   x = 7,715.05