Finding the Fourth Proportional to 8,778.82, 12,115.90 and 5,003.34

Step by Step Solution

1. Step 1: Write the proportion equation
   8,778.82 : 12,115.90 = 5,003.34 : x
2. Step 2: Convert to fraction form
   8,778.82/12,115.90 = 5,003.34/x
3. Step 3: Cross multiply
   8,778.82x = 12,115.90 × 5,003.34
4. Step 4: Simplify right side
   8,778.82x = 60,619,967.11
5. Step 5: Solve for x
   x = 60,619,967.11/8,778.82
6. Step 6: Final answer
   x = 6,905.25