Finding the Fourth Proportional to 9,365.55, 12,921.31 and 5,828.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,365.55 : 12,921.31 = 5,828.52 : x
2. Step 2: Convert to fraction form
   9,365.55/12,921.31 = 5,828.52/x
3. Step 3: Cross multiply
   9,365.55x = 12,921.31 × 5,828.52
4. Step 4: Simplify right side
   9,365.55x = 75,312,113.76
5. Step 5: Solve for x
   x = 75,312,113.76/9,365.55
6. Step 6: Final answer
   x = 8,041.40