Finding the Fourth Proportional to 21,303.78, 29,414.86 and 13,754.52

Step by Step Solution

1. Step 1: Write the proportion equation
   21,303.78 : 29,414.86 = 13,754.52 : x
2. Step 2: Convert to fraction form
   21,303.78/29,414.86 = 13,754.52/x
3. Step 3: Cross multiply
   21,303.78x = 29,414.86 × 13,754.52
4. Step 4: Simplify right side
   21,303.78x = 404,587,280.17
5. Step 5: Solve for x
   x = 404,587,280.17/21,303.78
6. Step 6: Final answer
   x = 18,991.34