Finding the Fourth Proportional to 10,953.72, 15,110.01 and 7,177.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,953.72 : 15,110.01 = 7,177.50 : x
2. Step 2: Convert to fraction form
   10,953.72/15,110.01 = 7,177.50/x
3. Step 3: Cross multiply
   10,953.72x = 15,110.01 × 7,177.50
4. Step 4: Simplify right side
   10,953.72x = 108,452,096.78
5. Step 5: Solve for x
   x = 108,452,096.78/10,953.72
6. Step 6: Final answer
   x = 9,900.94