Finding the Fourth Proportional to 8,972.93, 12,388.74 and 5,617.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,972.93 : 12,388.74 = 5,617.10 : x
2. Step 2: Convert to fraction form
   8,972.93/12,388.74 = 5,617.10/x
3. Step 3: Cross multiply
   8,972.93x = 12,388.74 × 5,617.10
4. Step 4: Simplify right side
   8,972.93x = 69,588,791.45
5. Step 5: Solve for x
   x = 69,588,791.45/8,972.93
6. Step 6: Final answer
   x = 7,755.41