Finding the Fourth Proportional to 13,760.56, 18,989.67 and 7,472.94

Step by Step Solution

1. Step 1: Write the proportion equation
   13,760.56 : 18,989.67 = 7,472.94 : x
2. Step 2: Convert to fraction form
   13,760.56/18,989.67 = 7,472.94/x
3. Step 3: Cross multiply
   13,760.56x = 18,989.67 × 7,472.94
4. Step 4: Simplify right side
   13,760.56x = 141,908,664.53
5. Step 5: Solve for x
   x = 141,908,664.53/13,760.56
6. Step 6: Final answer
   x = 10,312.71