Finding the Fourth Proportional to 13,812.72, 19,061.28 and 7,525.14

Step by Step Solution

1. Step 1: Write the proportion equation
   13,812.72 : 19,061.28 = 7,525.14 : x
2. Step 2: Convert to fraction form
   13,812.72/19,061.28 = 7,525.14/x
3. Step 3: Cross multiply
   13,812.72x = 19,061.28 × 7,525.14
4. Step 4: Simplify right side
   13,812.72x = 143,438,800.58
5. Step 5: Solve for x
   x = 143,438,800.58/13,812.72
6. Step 6: Final answer
   x = 10,384.54