Finding the Fourth Proportional to 13,897.56, 19,177.92 and 7,608.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,897.56 : 19,177.92 = 7,608.72 : x
2. Step 2: Convert to fraction form
   13,897.56/19,177.92 = 7,608.72/x
3. Step 3: Cross multiply
   13,897.56x = 19,177.92 × 7,608.72
4. Step 4: Simplify right side
   13,897.56x = 145,919,423.46
5. Step 5: Solve for x
   x = 145,919,423.46/13,897.56
6. Step 6: Final answer
   x = 10,499.64