Finding the Fourth Proportional to 13,969.06, 19,276.59 and 7,680.22

Step by Step Solution

1. Step 1: Write the proportion equation
   13,969.06 : 19,276.59 = 7,680.22 : x
2. Step 2: Convert to fraction form
   13,969.06/19,276.59 = 7,680.22/x
3. Step 3: Cross multiply
   13,969.06x = 19,276.59 × 7,680.22
4. Step 4: Simplify right side
   13,969.06x = 148,048,452.05
5. Step 5: Solve for x
   x = 148,048,452.05/13,969.06
6. Step 6: Final answer
   x = 10,598.31