Finding the Fourth Proportional to 13,967.91, 19,275.72 and 7,680.27

Step by Step Solution

1. Step 1: Write the proportion equation
   13,967.91 : 19,275.72 = 7,680.27 : x
2. Step 2: Convert to fraction form
   13,967.91/19,275.72 = 7,680.27/x
3. Step 3: Cross multiply
   13,967.91x = 19,275.72 × 7,680.27
4. Step 4: Simplify right side
   13,967.91x = 148,042,734.04
5. Step 5: Solve for x
   x = 148,042,734.04/13,967.91
6. Step 6: Final answer
   x = 10,598.77