Finding the Fourth Proportional to 9,359.50, 12,917.76 and 5,582.90

Step by Step Solution

1. Step 1: Write the proportion equation
   9,359.50 : 12,917.76 = 5,582.90 : x
2. Step 2: Convert to fraction form
   9,359.50/12,917.76 = 5,582.90/x
3. Step 3: Cross multiply
   9,359.50x = 12,917.76 × 5,582.90
4. Step 4: Simplify right side
   9,359.50x = 72,118,562.30
5. Step 5: Solve for x
   x = 72,118,562.30/9,359.50
6. Step 6: Final answer
   x = 7,705.39