Finding the Fourth Proportional to 9,690.76, 13,373.94 and 5,499.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,690.76 : 13,373.94 = 5,499.28 : x
2. Step 2: Convert to fraction form
   9,690.76/13,373.94 = 5,499.28/x
3. Step 3: Cross multiply
   9,690.76x = 13,373.94 × 5,499.28
4. Step 4: Simplify right side
   9,690.76x = 73,547,040.76
5. Step 5: Solve for x
   x = 73,547,040.76/9,690.76
6. Step 6: Final answer
   x = 7,589.40