Finding the Fourth Proportional to 13,967.02, 19,274.56 and 7,679.80

Step by Step Solution

1. Step 1: Write the proportion equation
   13,967.02 : 19,274.56 = 7,679.80 : x
2. Step 2: Convert to fraction form
   13,967.02/19,274.56 = 7,679.80/x
3. Step 3: Cross multiply
   13,967.02x = 19,274.56 × 7,679.80
4. Step 4: Simplify right side
   13,967.02x = 148,024,765.89
5. Step 5: Solve for x
   x = 148,024,765.89/13,967.02
6. Step 6: Final answer
   x = 10,598.16