Finding the Fourth Proportional to 9,619.02, 13,272.60 and 5,369.86

Step by Step Solution

1. Step 1: Write the proportion equation
   9,619.02 : 13,272.60 = 5,369.86 : x
2. Step 2: Convert to fraction form
   9,619.02/13,272.60 = 5,369.86/x
3. Step 3: Cross multiply
   9,619.02x = 13,272.60 × 5,369.86
4. Step 4: Simplify right side
   9,619.02x = 71,272,003.84
5. Step 5: Solve for x
   x = 71,272,003.84/9,619.02
6. Step 6: Final answer
   x = 7,409.49