Finding the Fourth Proportional to 9,677.21, 13,354.74 and 5,485.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,677.21 : 13,354.74 = 5,485.46 : x
2. Step 2: Convert to fraction form
   9,677.21/13,354.74 = 5,485.46/x
3. Step 3: Cross multiply
   9,677.21x = 13,354.74 × 5,485.46
4. Step 4: Simplify right side
   9,677.21x = 73,256,845.88
5. Step 5: Solve for x
   x = 73,256,845.88/9,677.21
6. Step 6: Final answer
   x = 7,570.04