Finding the Fourth Proportional to 9,909.54, 13,674.78 and 5,432.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,909.54 : 13,674.78 = 5,432.94 : x
2. Step 2: Convert to fraction form
   9,909.54/13,674.78 = 5,432.94/x
3. Step 3: Cross multiply
   9,909.54x = 13,674.78 × 5,432.94
4. Step 4: Simplify right side
   9,909.54x = 74,294,259.25
5. Step 5: Solve for x
   x = 74,294,259.25/9,909.54
6. Step 6: Final answer
   x = 7,497.25