Finding the Fourth Proportional to 9,643.41, 13,307.37 and 5,451.39

Step by Step Solution

1. Step 1: Write the proportion equation
   9,643.41 : 13,307.37 = 5,451.39 : x
2. Step 2: Convert to fraction form
   9,643.41/13,307.37 = 5,451.39/x
3. Step 3: Cross multiply
   9,643.41x = 13,307.37 × 5,451.39
4. Step 4: Simplify right side
   9,643.41x = 72,543,663.74
5. Step 5: Solve for x
   x = 72,543,663.74/9,643.41
6. Step 6: Final answer
   x = 7,522.62