Finding the Fourth Proportional to 9,805.55, 13,530.63 and 5,826.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,805.55 : 13,530.63 = 5,826.12 : x
2. Step 2: Convert to fraction form
   9,805.55/13,530.63 = 5,826.12/x
3. Step 3: Cross multiply
   9,805.55x = 13,530.63 × 5,826.12
4. Step 4: Simplify right side
   9,805.55x = 78,831,044.93
5. Step 5: Solve for x
   x = 78,831,044.93/9,805.55
6. Step 6: Final answer
   x = 8,039.43