Finding the Fourth Proportional to 14,291.55, 21,436.83 and 4,430.61

Step by Step Solution

1. Step 1: Write the proportion equation
   14,291.55 : 21,436.83 = 4,430.61 : x
2. Step 2: Convert to fraction form
   14,291.55/21,436.83 = 4,430.61/x
3. Step 3: Cross multiply
   14,291.55x = 21,436.83 × 4,430.61
4. Step 4: Simplify right side
   14,291.55x = 94,978,233.37
5. Step 5: Solve for x
   x = 94,978,233.37/14,291.55
6. Step 6: Final answer
   x = 6,645.76