Finding the Fourth Proportional to 10,563.38, 15,838.39 and 8,997.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,563.38 : 15,838.39 = 8,997.25 : x
2. Step 2: Convert to fraction form
   10,563.38/15,838.39 = 8,997.25/x
3. Step 3: Cross multiply
   10,563.38x = 15,838.39 × 8,997.25
4. Step 4: Simplify right side
   10,563.38x = 142,501,830.25
5. Step 5: Solve for x
   x = 142,501,830.25/10,563.38
6. Step 6: Final answer
   x = 13,490.17