Finding the Fourth Proportional to 9,333.51, 12,879.72 and 5,354.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,333.51 : 12,879.72 = 5,354.25 : x
2. Step 2: Convert to fraction form
   9,333.51/12,879.72 = 5,354.25/x
3. Step 3: Cross multiply
   9,333.51x = 12,879.72 × 5,354.25
4. Step 4: Simplify right side
   9,333.51x = 68,961,240.81
5. Step 5: Solve for x
   x = 68,961,240.81/9,333.51
6. Step 6: Final answer
   x = 7,388.56