Finding the Fourth Proportional to 21,760.06, 32,641.82 and 9,280.19

Step by Step Solution

1. Step 1: Write the proportion equation
   21,760.06 : 32,641.82 = 9,280.19 : x
2. Step 2: Convert to fraction form
   21,760.06/32,641.82 = 9,280.19/x
3. Step 3: Cross multiply
   21,760.06x = 32,641.82 × 9,280.19
4. Step 4: Simplify right side
   21,760.06x = 302,922,291.55
5. Step 5: Solve for x
   x = 302,922,291.55/21,760.06
6. Step 6: Final answer
   x = 13,921.02