Finding the Fourth Proportional to 9,165.42, 12,648.63 and 5,077.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,165.42 : 12,648.63 = 5,077.31 : x
2. Step 2: Convert to fraction form
   9,165.42/12,648.63 = 5,077.31/x
3. Step 3: Cross multiply
   9,165.42x = 12,648.63 × 5,077.31
4. Step 4: Simplify right side
   9,165.42x = 64,220,952.34
5. Step 5: Solve for x
   x = 64,220,952.34/9,165.42
6. Step 6: Final answer
   x = 7,006.88