Finding the Fourth Proportional to 8,992.03, 12,410.61 and 5,637.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,992.03 : 12,410.61 = 5,637.72 : x
2. Step 2: Convert to fraction form
   8,992.03/12,410.61 = 5,637.72/x
3. Step 3: Cross multiply
   8,992.03x = 12,410.61 × 5,637.72
4. Step 4: Simplify right side
   8,992.03x = 69,967,523.07
5. Step 5: Solve for x
   x = 69,967,523.07/8,992.03
6. Step 6: Final answer
   x = 7,781.06