Finding the Fourth Proportional to 9,699.33, 13,385.13 and 5,450.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,699.33 : 13,385.13 = 5,450.57 : x
2. Step 2: Convert to fraction form
   9,699.33/13,385.13 = 5,450.57/x
3. Step 3: Cross multiply
   9,699.33x = 13,385.13 × 5,450.57
4. Step 4: Simplify right side
   9,699.33x = 72,956,588.02
5. Step 5: Solve for x
   x = 72,956,588.02/9,699.33
6. Step 6: Final answer
   x = 7,521.82