Finding the Fourth Proportional to 14,167.55, 21,131.79 and 12,304.01

Step by Step Solution

1. Step 1: Write the proportion equation
   14,167.55 : 21,131.79 = 12,304.01 : x
2. Step 2: Convert to fraction form
   14,167.55/21,131.79 = 12,304.01/x
3. Step 3: Cross multiply
   14,167.55x = 21,131.79 × 12,304.01
4. Step 4: Simplify right side
   14,167.55x = 260,005,649.82
5. Step 5: Solve for x
   x = 260,005,649.82/14,167.55
6. Step 6: Final answer
   x = 18,352.20