Finding the Fourth Proportional to 9,860.93, 13,608.50 and 5,384.87

Step by Step Solution

1. Step 1: Write the proportion equation
   9,860.93 : 13,608.50 = 5,384.87 : x
2. Step 2: Convert to fraction form
   9,860.93/13,608.50 = 5,384.87/x
3. Step 3: Cross multiply
   9,860.93x = 13,608.50 × 5,384.87
4. Step 4: Simplify right side
   9,860.93x = 73,280,003.40
5. Step 5: Solve for x
   x = 73,280,003.40/9,860.93
6. Step 6: Final answer
   x = 7,431.35