Finding the Fourth Proportional to 8,993.16, 12,416.34 and 5,807.89

Step by Step Solution

1. Step 1: Write the proportion equation
   8,993.16 : 12,416.34 = 5,807.89 : x
2. Step 2: Convert to fraction form
   8,993.16/12,416.34 = 5,807.89/x
3. Step 3: Cross multiply
   8,993.16x = 12,416.34 × 5,807.89
4. Step 4: Simplify right side
   8,993.16x = 72,112,671.71
5. Step 5: Solve for x
   x = 72,112,671.71/8,993.16
6. Step 6: Final answer
   x = 8,018.61