Finding the Fourth Proportional to 9,588.86, 13,231.78 and 5,339.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,588.86 : 13,231.78 = 5,339.60 : x
2. Step 2: Convert to fraction form
   9,588.86/13,231.78 = 5,339.60/x
3. Step 3: Cross multiply
   9,588.86x = 13,231.78 × 5,339.60
4. Step 4: Simplify right side
   9,588.86x = 70,652,332.98
5. Step 5: Solve for x
   x = 70,652,332.98/9,588.86
6. Step 6: Final answer
   x = 7,368.17