Finding the Fourth Proportional to 14,865, 22,308.36 and 11,978.16

Step by Step Solution

1. Step 1: Write the proportion equation
   14,865 : 22,308.36 = 11,978.16 : x
2. Step 2: Convert to fraction form
   14,865/22,308.36 = 11,978.16/x
3. Step 3: Cross multiply
   14,865x = 22,308.36 × 11,978.16
4. Step 4: Simplify right side
   14,865x = 267,213,105.42
5. Step 5: Solve for x
   x = 267,213,105.42/14,865
6. Step 6: Final answer
   x = 17,975.99