Finding the Fourth Proportional to 9,354.50, 12,905.94 and 5,999.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,354.50 : 12,905.94 = 5,999.12 : x
2. Step 2: Convert to fraction form
   9,354.50/12,905.94 = 5,999.12/x
3. Step 3: Cross multiply
   9,354.50x = 12,905.94 × 5,999.12
4. Step 4: Simplify right side
   9,354.50x = 77,424,282.77
5. Step 5: Solve for x
   x = 77,424,282.77/9,354.50
6. Step 6: Final answer
   x = 8,276.69