Finding the Fourth Proportional to 9,885.88, 13,647.45 and 5,693.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,885.88 : 13,647.45 = 5,693.32 : x
2. Step 2: Convert to fraction form
   9,885.88/13,647.45 = 5,693.32/x
3. Step 3: Cross multiply
   9,885.88x = 13,647.45 × 5,693.32
4. Step 4: Simplify right side
   9,885.88x = 77,699,300.03
5. Step 5: Solve for x
   x = 77,699,300.03/9,885.88
6. Step 6: Final answer
   x = 7,859.62