Finding the Fourth Proportional to 13,097.58, 19,650.69 and 4,780.14

Step by Step Solution

1. Step 1: Write the proportion equation
   13,097.58 : 19,650.69 = 4,780.14 : x
2. Step 2: Convert to fraction form
   13,097.58/19,650.69 = 4,780.14/x
3. Step 3: Cross multiply
   13,097.58x = 19,650.69 × 4,780.14
4. Step 4: Simplify right side
   13,097.58x = 93,933,049.30
5. Step 5: Solve for x
   x = 93,933,049.30/13,097.58
6. Step 6: Final answer
   x = 7,171.79