Finding the Fourth Proportional to 7,534.72, 10,392.69 and 5,172.76

Step by Step Solution

1. Step 1: Write the proportion equation
   7,534.72 : 10,392.69 = 5,172.76 : x
2. Step 2: Convert to fraction form
   7,534.72/10,392.69 = 5,172.76/x
3. Step 3: Cross multiply
   7,534.72x = 10,392.69 × 5,172.76
4. Step 4: Simplify right side
   7,534.72x = 53,758,891.12
5. Step 5: Solve for x
   x = 53,758,891.12/7,534.72
6. Step 6: Final answer
   x = 7,134.82