Finding the Fourth Proportional to 9,673.86, 13,349.78 and 5,424.91

Step by Step Solution

1. Step 1: Write the proportion equation
   9,673.86 : 13,349.78 = 5,424.91 : x
2. Step 2: Convert to fraction form
   9,673.86/13,349.78 = 5,424.91/x
3. Step 3: Cross multiply
   9,673.86x = 13,349.78 × 5,424.91
4. Step 4: Simplify right side
   9,673.86x = 72,421,314.86
5. Step 5: Solve for x
   x = 72,421,314.86/9,673.86
6. Step 6: Final answer
   x = 7,486.29