Finding the Fourth Proportional to 21,445.98, 29,595.43 and 12,014.55

Step by Step Solution

1. Step 1: Write the proportion equation
   21,445.98 : 29,595.43 = 12,014.55 : x
2. Step 2: Convert to fraction form
   21,445.98/29,595.43 = 12,014.55/x
3. Step 3: Cross multiply
   21,445.98x = 29,595.43 × 12,014.55
4. Step 4: Simplify right side
   21,445.98x = 355,575,773.51
5. Step 5: Solve for x
   x = 355,575,773.51/21,445.98
6. Step 6: Final answer
   x = 16,580.07