Finding the Fourth Proportional to 9,005.46, 13,442.38 and 8,355.02

Step by Step Solution

1. Step 1: Write the proportion equation
   9,005.46 : 13,442.38 = 8,355.02 : x
2. Step 2: Convert to fraction form
   9,005.46/13,442.38 = 8,355.02/x
3. Step 3: Cross multiply
   9,005.46x = 13,442.38 × 8,355.02
4. Step 4: Simplify right side
   9,005.46x = 112,311,353.75
5. Step 5: Solve for x
   x = 112,311,353.75/9,005.46
6. Step 6: Final answer
   x = 12,471.47