Finding the Fourth Proportional to 13,897.47, 19,179 and 7,609.86

Step by Step Solution

1. Step 1: Write the proportion equation
   13,897.47 : 19,179 = 7,609.86 : x
2. Step 2: Convert to fraction form
   13,897.47/19,179 = 7,609.86/x
3. Step 3: Cross multiply
   13,897.47x = 19,179 × 7,609.86
4. Step 4: Simplify right side
   13,897.47x = 145,949,504.94
5. Step 5: Solve for x
   x = 145,949,504.94/13,897.47
6. Step 6: Final answer
   x = 10,501.88