Finding the Fourth Proportional to 9,591.48, 13,235.88 and 5,342.40

Step by Step Solution

1. Step 1: Write the proportion equation
   9,591.48 : 13,235.88 = 5,342.40 : x
2. Step 2: Convert to fraction form
   9,591.48/13,235.88 = 5,342.40/x
3. Step 3: Cross multiply
   9,591.48x = 13,235.88 × 5,342.40
4. Step 4: Simplify right side
   9,591.48x = 70,711,365.31
5. Step 5: Solve for x
   x = 70,711,365.31/9,591.48
6. Step 6: Final answer
   x = 7,372.31