Finding the Fourth Proportional to 14,019.54, 21,026.34 and 5,255.10

Step by Step Solution

1. Step 1: Write the proportion equation
   14,019.54 : 21,026.34 = 5,255.10 : x
2. Step 2: Convert to fraction form
   14,019.54/21,026.34 = 5,255.10/x
3. Step 3: Cross multiply
   14,019.54x = 21,026.34 × 5,255.10
4. Step 4: Simplify right side
   14,019.54x = 110,495,519.33
5. Step 5: Solve for x
   x = 110,495,519.33/14,019.54
6. Step 6: Final answer
   x = 7,881.54