Finding the Fourth Proportional to 8,994.04, 12,411.50 and 5,638.66

Step by Step Solution

1. Step 1: Write the proportion equation
   8,994.04 : 12,411.50 = 5,638.66 : x
2. Step 2: Convert to fraction form
   8,994.04/12,411.50 = 5,638.66/x
3. Step 3: Cross multiply
   8,994.04x = 12,411.50 × 5,638.66
4. Step 4: Simplify right side
   8,994.04x = 69,984,228.59
5. Step 5: Solve for x
   x = 69,984,228.59/8,994.04
6. Step 6: Final answer
   x = 7,781.18