Finding the Fourth Proportional to 9,826.21, 13,559.85 and 5,349.93

Step by Step Solution

1. Step 1: Write the proportion equation
   9,826.21 : 13,559.85 = 5,349.93 : x
2. Step 2: Convert to fraction form
   9,826.21/13,559.85 = 5,349.93/x
3. Step 3: Cross multiply
   9,826.21x = 13,559.85 × 5,349.93
4. Step 4: Simplify right side
   9,826.21x = 72,544,248.31
5. Step 5: Solve for x
   x = 72,544,248.31/9,826.21
6. Step 6: Final answer
   x = 7,382.73