Finding the Fourth Proportional to 10,067.60, 15,086.00 and 4,221.02

Step by Step Solution

1. Step 1: Write the proportion equation
   10,067.60 : 15,086.00 = 4,221.02 : x
2. Step 2: Convert to fraction form
   10,067.60/15,086.00 = 4,221.02/x
3. Step 3: Cross multiply
   10,067.60x = 15,086.00 × 4,221.02
4. Step 4: Simplify right side
   10,067.60x = 63,678,211.18
5. Step 5: Solve for x
   x = 63,678,211.18/10,067.60
6. Step 6: Final answer
   x = 6,325.07