Finding the Fourth Proportional to 8,988.56, 12,404.22 and 5,009.81

Step by Step Solution

1. Step 1: Write the proportion equation
   8,988.56 : 12,404.22 = 5,009.81 : x
2. Step 2: Convert to fraction form
   8,988.56/12,404.22 = 5,009.81/x
3. Step 3: Cross multiply
   8,988.56x = 12,404.22 × 5,009.81
4. Step 4: Simplify right side
   8,988.56x = 62,142,723.38
5. Step 5: Solve for x
   x = 62,142,723.38/8,988.56
6. Step 6: Final answer
   x = 6,913.54