Finding the Fourth Proportional to 13,968.42, 19,276.17 and 7,680.36

Step by Step Solution

1. Step 1: Write the proportion equation
   13,968.42 : 19,276.17 = 7,680.36 : x
2. Step 2: Convert to fraction form
   13,968.42/19,276.17 = 7,680.36/x
3. Step 3: Cross multiply
   13,968.42x = 19,276.17 × 7,680.36
4. Step 4: Simplify right side
   13,968.42x = 148,047,925.02
5. Step 5: Solve for x
   x = 148,047,925.02/13,968.42
6. Step 6: Final answer
   x = 10,598.76