Finding the Fourth Proportional to 9,674.51, 13,349.88 and 5,425.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,674.51 : 13,349.88 = 5,425.72 : x
2. Step 2: Convert to fraction form
   9,674.51/13,349.88 = 5,425.72/x
3. Step 3: Cross multiply
   9,674.51x = 13,349.88 × 5,425.72
4. Step 4: Simplify right side
   9,674.51x = 72,432,677.54
5. Step 5: Solve for x
   x = 72,432,677.54/9,674.51
6. Step 6: Final answer
   x = 7,486.96