Finding the Fourth Proportional to 8,308.83, 12,467.48 and 5,188.17

Step by Step Solution

1. Step 1: Write the proportion equation
   8,308.83 : 12,467.48 = 5,188.17 : x
2. Step 2: Convert to fraction form
   8,308.83/12,467.48 = 5,188.17/x
3. Step 3: Cross multiply
   8,308.83x = 12,467.48 × 5,188.17
4. Step 4: Simplify right side
   8,308.83x = 64,683,379.77
5. Step 5: Solve for x
   x = 64,683,379.77/8,308.83
6. Step 6: Final answer
   x = 7,784.90