Finding the Fourth Proportional to 9,308.30, 12,845.58 and 5,059.45

Step by Step Solution

1. Step 1: Write the proportion equation
   9,308.30 : 12,845.58 = 5,059.45 : x
2. Step 2: Convert to fraction form
   9,308.30/12,845.58 = 5,059.45/x
3. Step 3: Cross multiply
   9,308.30x = 12,845.58 × 5,059.45
4. Step 4: Simplify right side
   9,308.30x = 64,991,569.73
5. Step 5: Solve for x
   x = 64,991,569.73/9,308.30
6. Step 6: Final answer
   x = 6,982.11