Finding the Fourth Proportional to 9,533.79, 13,156.74 and 5,342.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,533.79 : 13,156.74 = 5,342.31 : x
2. Step 2: Convert to fraction form
   9,533.79/13,156.74 = 5,342.31/x
3. Step 3: Cross multiply
   9,533.79x = 13,156.74 × 5,342.31
4. Step 4: Simplify right side
   9,533.79x = 70,287,383.67
5. Step 5: Solve for x
   x = 70,287,383.67/9,533.79
6. Step 6: Final answer
   x = 7,372.45