Finding the Fourth Proportional to 9,691.84, 13,373.40 and 5,499.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,691.84 : 13,373.40 = 5,499.28 : x
2. Step 2: Convert to fraction form
   9,691.84/13,373.40 = 5,499.28/x
3. Step 3: Cross multiply
   9,691.84x = 13,373.40 × 5,499.28
4. Step 4: Simplify right side
   9,691.84x = 73,544,071.15
5. Step 5: Solve for x
   x = 73,544,071.15/9,691.84
6. Step 6: Final answer
   x = 7,588.25