Finding the Fourth Proportional to 13,968.38, 19,275.56 and 7,680.76

Step by Step Solution

1. Step 1: Write the proportion equation
   13,968.38 : 19,275.56 = 7,680.76 : x
2. Step 2: Convert to fraction form
   13,968.38/19,275.56 = 7,680.76/x
3. Step 3: Cross multiply
   13,968.38x = 19,275.56 × 7,680.76
4. Step 4: Simplify right side
   13,968.38x = 148,050,950.23
5. Step 5: Solve for x
   x = 148,050,950.23/13,968.38
6. Step 6: Final answer
   x = 10,599.01