Finding the Fourth Proportional to 8,994.06, 12,345.77 and 7,977.11

Step by Step Solution

1. Step 1: Write the proportion equation
   8,994.06 : 12,345.77 = 7,977.11 : x
2. Step 2: Convert to fraction form
   8,994.06/12,345.77 = 7,977.11/x
3. Step 3: Cross multiply
   8,994.06x = 12,345.77 × 7,977.11
4. Step 4: Simplify right side
   8,994.06x = 98,483,463.71
5. Step 5: Solve for x
   x = 98,483,463.71/8,994.06
6. Step 6: Final answer
   x = 10,949.83