Finding the Fourth Proportional to 9,488.25, 14,214.56 and 8,772.21

Step by Step Solution

1. Step 1: Write the proportion equation
   9,488.25 : 14,214.56 = 8,772.21 : x
2. Step 2: Convert to fraction form
   9,488.25/14,214.56 = 8,772.21/x
3. Step 3: Cross multiply
   9,488.25x = 14,214.56 × 8,772.21
4. Step 4: Simplify right side
   9,488.25x = 124,693,061.52
5. Step 5: Solve for x
   x = 124,693,061.52/9,488.25
6. Step 6: Final answer
   x = 13,141.84