Finding the Fourth Proportional to 13,760.72, 20,634.76 and 7,522.84

Step by Step Solution

1. Step 1: Write the proportion equation
   13,760.72 : 20,634.76 = 7,522.84 : x
2. Step 2: Convert to fraction form
   13,760.72/20,634.76 = 7,522.84/x
3. Step 3: Cross multiply
   13,760.72x = 20,634.76 × 7,522.84
4. Step 4: Simplify right side
   13,760.72x = 155,231,997.92
5. Step 5: Solve for x
   x = 155,231,997.92/13,760.72
6. Step 6: Final answer
   x = 11,280.80