Finding the Fourth Proportional to 13,812.88, 19,061.56 and 7,525.12

Step by Step Solution

1. Step 1: Write the proportion equation
   13,812.88 : 19,061.56 = 7,525.12 : x
2. Step 2: Convert to fraction form
   13,812.88/19,061.56 = 7,525.12/x
3. Step 3: Cross multiply
   13,812.88x = 19,061.56 × 7,525.12
4. Step 4: Simplify right side
   13,812.88x = 143,440,526.39
5. Step 5: Solve for x
   x = 143,440,526.39/13,812.88
6. Step 6: Final answer
   x = 10,384.55