Finding the Fourth Proportional to 8,997.18, 12,423.95 and 5,645.76

Step by Step Solution

1. Step 1: Write the proportion equation
   8,997.18 : 12,423.95 = 5,645.76 : x
2. Step 2: Convert to fraction form
   8,997.18/12,423.95 = 5,645.76/x
3. Step 3: Cross multiply
   8,997.18x = 12,423.95 × 5,645.76
4. Step 4: Simplify right side
   8,997.18x = 70,142,611.72
5. Step 5: Solve for x
   x = 70,142,611.72/8,997.18
6. Step 6: Final answer
   x = 7,796.07