Finding the Fourth Proportional to 9,646.84, 13,312.42 and 5,455.09

Step by Step Solution

1. Step 1: Write the proportion equation
   9,646.84 : 13,312.42 = 5,455.09 : x
2. Step 2: Convert to fraction form
   9,646.84/13,312.42 = 5,455.09/x
3. Step 3: Cross multiply
   9,646.84x = 13,312.42 × 5,455.09
4. Step 4: Simplify right side
   9,646.84x = 72,620,449.22
5. Step 5: Solve for x
   x = 72,620,449.22/9,646.84
6. Step 6: Final answer
   x = 7,527.90