Finding the Fourth Proportional to 13,897.52, 19,178.56 and 7,609.92

Step by Step Solution

1. Step 1: Write the proportion equation
   13,897.52 : 19,178.56 = 7,609.92 : x
2. Step 2: Convert to fraction form
   13,897.52/19,178.56 = 7,609.92/x
3. Step 3: Cross multiply
   13,897.52x = 19,178.56 × 7,609.92
4. Step 4: Simplify right side
   13,897.52x = 145,947,307.32
5. Step 5: Solve for x
   x = 145,947,307.32/13,897.52
6. Step 6: Final answer
   x = 10,501.68